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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.

A359646 a(n) = Sum_{k=0..n} binomial(n,k) * binomial(5*n+k,k).

Table of values

n a(n)
0 1
1 7
2 89
3 1273
4 19181
5 297662
6 4707971
7 75459496
8 1221388525
9 19919031781
10 326797222834
11 5387618403526
12 89178832899887
13 1481143718244912
14 24671054686539336
15 411966653603163008
16 6894167059382069485
17 115593504497163747167
18 1941434442814233362939
19 32656575110841643234631

List of values

[1, 7, 89, 1273, 19181, 297662, 4707971, 75459496, 1221388525, 19919031781, 326797222834, 5387618403526, 89178832899887, 1481143718244912, 24671054686539336, 411966653603163008, 6894167059382069485, 115593504497163747167, 1941434442814233362939, 32656575110841643234631]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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