cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A334636 Number of different values of (x_n, x_1*x_2*...*x_n) where x_1=1 and x_i-x_{i-1} is 0 or 1.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 16
6 31
7 59
8 110
9 202
10 366
11 653
12 1143
13 1961
14 3303
15 5480
16 8992
17 14647
18 23742
19 38334
20 61648
21 98700
22 157265
23 249397
24 393814
25 619611
26 971988
27 1521015
28 2374946
29 3700290
30 5751806
31 8916890
32 13780598
33 21220014
34 32540179
35 49668909
36 75435401

List of values

[1, 2, 4, 8, 16, 31, 59, 110, 202, 366, 653, 1143, 1961, 3303, 5480, 8992, 14647, 23742, 38334, 61648, 98700, 157265, 249397, 393814, 619611, 971988, 1521015, 2374946, 3700290, 5751806, 8916890, 13780598, 21220014, 32540179, 49668909, 75435401]