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.

A255990 Number of length n+6 0..1 arrays with at most one downstep in every 6 consecutive neighbor pairs.

Table of values

n a(n)
1 64
2 98
3 156
4 257
5 428
6 705
7 1134
8 1797
9 2848
10 4560
11 7384
12 12021
13 19508
14 31444
15 50432
16 80828
17 129904
18 209549
19 338650
20 546939
21 881612
22 1418697
23 2281990
24 3673412
25 5919888
26 9546459
27 15393334
28 24807246
29 39956320
30 64344494
31 103638460
32 166985169

List of values

[64, 98, 156, 257, 428, 705, 1134, 1797, 2848, 4560, 7384, 12021, 19508, 31444, 50432, 80828, 129904, 209549, 338650, 546939, 881612, 1418697, 2281990, 3673412, 5919888, 9546459, 15393334, 24807246, 39956320, 64344494, 103638460, 166985169]