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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.

A309300 (1/8) times the sum of the elements of all subsets of [n] whose sum is divisible by eight.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 3
6 10
7 27
8 70
9 178
10 438
11 1056
12 2496
13 5824
14 13440
15 30720
16 69632
17 156672
18 350208
19 778240
20 1720320
21 3784704
22 8290304
23 18087936
24 39321600
25 85196800
26 184025088
27 396361728
28 851443712
29 1824522240
30 3900702720
31 8321499136
32 17716740096
33 37648072704

List of values

[0, 0, 0, 0, 1, 3, 10, 27, 70, 178, 438, 1056, 2496, 5824, 13440, 30720, 69632, 156672, 350208, 778240, 1720320, 3784704, 8290304, 18087936, 39321600, 85196800, 184025088, 396361728, 851443712, 1824522240, 3900702720, 8321499136, 17716740096, 37648072704]

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

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