Look-and-say sequence - Wikipedia, the free encyclopedia

en.wikipedia.org

In mathematics, the look-and-say sequence is the sequence of integers beginning as follows: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211, ... (sequence A005150 in OEIS). To generate a member of the sequence from the previous member, read off the digits of the previous member...

Look-and-say sequence - Rosetta Code

rosettacode.org

The Look and say sequence is a recursively defined sequence of numbers studied most notably by John Conway. Sequence Definition. Take a decimal number. Look at the number, visually grouping consecutive runs of the same digit.

Look-and-say sequence

en.academic.ru

The lines show the growth of the numbers of digits in the look-and-say sequences with starting points 23 (red), 1 (blue), 13 (violet), 312 (green). These lines (when represented in a logarithmic scale) tend to straight lines whose slopes coincide with Conway's constant.

Look-and-Say Sequence - GeeksforGeeks

www.geeksforgeeks.org

Find the n’th term in Look-and-say (Or Count and Say) Sequence. The look-and-say sequence is the sequence of below integers: 1, 11, 21, 1211, 111221, 312211, 13112221, 1113213211

A005150 - OEIS

oeis.org

A005150. Look and Say sequence: describe the previous term! (method A - initial term is 1). (Formerly M4780).

Look and say sequence - Programming Puzzles & Code Golf Stack...

codegolf.stackexchange.com

The look and say sequence is a basic form of run length encoding. The sequence starts with the number 1 and each additional number encodes the number of digits that are repeated before each digit sequence.

Problem 419 - Project Euler | Look and say sequence

projecteuler.net

Look and say sequence. Problem 419. Published on Saturday, 16th March 2013, 10:00 pm; Solved by 322; Difficulty rating: 50%.

python look-and-say sequence improved - Stack Overflow

stackoverflow.com

Replace a[i] by last here (you may not want to add anything in the first round). After the loop you have to add the last value of the counter together with the last character again (this was not yet done), i.e. add another result = result+str(k)+last after the loop. In total it looks like.

Nathaniel Johnston » The Binary “Look-and-Say” Sequence

www.nathanieljohnston.com

The look-and-say sequence (which I talked about here) is the sequence that you get by starting with the number 1 and constructing the next term in the sequence by “reading” the previous term. So 1 becomes “one one”, or 11.

Look-and-say sequence - Wikiwand

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