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.

A246228 Number of permutations of [n] with exactly eight (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down.

Table of values

n a(n)
15 9690
16 0
17 0
18 0
19 0
20 0
21 15555589905976050
22 0
23 0
24 0
25 0
26 0
27 705927677520644167681
28 0
29 0
30 0
31 44817466764068599693530434
32 0
33 0
34 0
35 0
36 327785215140138748862828534217850944
37 0
38 3576951943897328654730413638351518560
39 0
40 0
41 0

List of values

[9690, 0, 0, 0, 0, 0, 15555589905976050, 0, 0, 0, 0, 0, 705927677520644167681, 0, 0, 0, 44817466764068599693530434, 0, 0, 0, 0, 327785215140138748862828534217850944, 0, 3576951943897328654730413638351518560, 0, 0, 0]