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.
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 the OEIS). To generate a member of the sequence from the previous member, read off the digits of the previous member...
Find the n’th term in Look-and-say (Or Count and Say) Sequence.
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.
A005150. Look and Say sequence: describe the previous term! (method A - initial term is 1). (Formerly M4780).
Перед нами так называемая Look-and-Say sequence, начинающаяся с 0. Чтобы получить последующий член последовательности, нам потребуется обратиться к предыдущему и выполнить следующее
This example prints the first 10 values x = lookSayGenerator() for i in range(10): print(next(x)) you could also use it to create a list comprehension: x = lookSayGenerator() y = [next(x) for i in range(10)] This is a look and say sequence generator.
Background. Look and Say Sequence. Definition. Rules For Creating The Sequence.
Look and say sequence is the sequence of numbers generated from the previous number by reading off the digits of which the number consists.
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.