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.

A258735 Number of length n+5 0..3 arrays with at most one downstep in every n consecutive neighbor pairs.

Table of values

n a(n)
1 4096
2 11704
3 20955
4 35540
5 59188
6 92548
7 138196
8 199264
9 279560
10 383704
11 517281
12 687012
13 900944
14 1168660
15 1501510
16 1912864
17 2418388
18 3036344
19 3787915
20 4697556
21 5793372
22 7107524
23 8676664
24 10542400
25 12751792
26 15357880
27 18420245
28 22005604

List of values

[4096, 11704, 20955, 35540, 59188, 92548, 138196, 199264, 279560, 383704, 517281, 687012, 900944, 1168660, 1501510, 1912864, 2418388, 3036344, 3787915, 4697556, 5793372, 7107524, 8676664, 10542400, 12751792, 15357880, 18420245, 22005604]