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.

A306753 a(n) = Sum_{k=0..n} binomial(k, 9*(n-k)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 2
11 11
12 56
13 221
14 716
15 2003
16 5006
17 11441
18 24311
19 48621
20 92380
21 167980
22 294121
23 498751
24 824506
25 1341154
26 2177572
27 3605251
28 6249101
29 11593726
30 23138117
31 48904469
32 106653707
33 234305936
34 510034166
35 1089810953
36 2275676459
37 4637090547

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 11, 56, 221, 716, 2003, 5006, 11441, 24311, 48621, 92380, 167980, 294121, 498751, 824506, 1341154, 2177572, 3605251, 6249101, 11593726, 23138117, 48904469, 106653707, 234305936, 510034166, 1089810953, 2275676459, 4637090547]