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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.

A375382 a(n) = Sum_{k=1..n} abs(A375383(n, k)).

Table of values

n a(n)
1 1
2 3
3 4
4 6
5 10
6 16
7 26
8 52
9 108
10 240
11 574
12 1566
13 4542
14 14998
15 51080
16 193986
17 776946
18 3396530
19 15302498
20 75908634
21 384194222
22 2104919470
23 11853419616
24 71548745928
25 440446031112
26 2912298313022
27 19496636176860
28 139215008197810
29 1012273345561864
30 7779962149588026

List of values

[1, 3, 4, 6, 10, 16, 26, 52, 108, 240, 574, 1566, 4542, 14998, 51080, 193986, 776946, 3396530, 15302498, 75908634, 384194222, 2104919470, 11853419616, 71548745928, 440446031112, 2912298313022, 19496636176860, 139215008197810, 1012273345561864, 7779962149588026]

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

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