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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.

A221159 a(n) = Sum_{i=0..n} Stirling2(n,i)*2^(3i).

Table of values

n a(n)
0 1
1 8
2 72
3 712
4 7624
5 87496
6 1067976
7 13781448
8 187104200
9 2661876168
10 39549629384
11 611918940616
12 9834596715464
13 163824830616008
14 2823080829871048
15 50238768569014728
16 921839901090823112
17 17416746966515278280
18 338394913332895863752
19 6753431112631087835592
20 138296031340416209103816

List of values

[1, 8, 72, 712, 7624, 87496, 1067976, 13781448, 187104200, 2661876168, 39549629384, 611918940616, 9834596715464, 163824830616008, 2823080829871048, 50238768569014728, 921839901090823112, 17416746966515278280, 338394913332895863752, 6753431112631087835592, 138296031340416209103816]

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

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