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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.

A352863 a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n+3,k+3) * a(k).

Table of values

n a(n)
0 1
1 4
2 30
3 260
4 2625
5 30296
6 393372
7 5675160
8 90062775
9 1559197420
10 29242803018
11 590638256572
12 12781663255725
13 295040675093360
14 7236113219901240
15 187911083837928048
16 5150869386839932995
17 148622674413214927140
18 4502761102131604279590
19 142914444471765753144820

List of values

[1, 4, 30, 260, 2625, 30296, 393372, 5675160, 90062775, 1559197420, 29242803018, 590638256572, 12781663255725, 295040675093360, 7236113219901240, 187911083837928048, 5150869386839932995, 148622674413214927140, 4502761102131604279590, 142914444471765753144820]

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

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