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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.

A371079 a(n) = Sum_{k=0..n} 3^(n - k)*Pochhammer(k/3, n - k). Row sums of A371077.

Table of values

n a(n)
0 1
1 1
2 2
3 7
4 42
5 383
6 4716
7 72831
8 1349302
9 29123127
10 717194888
11 19837095511
12 608717233346
13 20518453925807
14 753563361399012
15 29948045451609743
16 1280446573813600366
17 58602977409168609351
18 2858550564643752169312
19 148037904246807129342247
20 8111929349028033318115898

List of values

[1, 1, 2, 7, 42, 383, 4716, 72831, 1349302, 29123127, 717194888, 19837095511, 608717233346, 20518453925807, 753563361399012, 29948045451609743, 1280446573813600366, 58602977409168609351, 2858550564643752169312, 148037904246807129342247, 8111929349028033318115898]

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

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