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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.

A353689 Convolution of A000716 and the positive integers.

Table of values

n a(n)
0 1
1 5
2 18
3 53
4 139
5 333
6 748
7 1592
8 3246
9 6379
10 12152
11 22524
12 40764
13 72213
14 125505
15 214378
16 360473
17 597450
18 977196
19 1578852
20 2522157
21 3986658
22 6239619
23 9675801
24 14874445
25 22679693
26 34314378
27 51539173
28 76875314
29 113913453
30 167741728
31 245534597
32 357361857
33 517293186

List of values

[1, 5, 18, 53, 139, 333, 748, 1592, 3246, 6379, 12152, 22524, 40764, 72213, 125505, 214378, 360473, 597450, 977196, 1578852, 2522157, 3986658, 6239619, 9675801, 14874445, 22679693, 34314378, 51539173, 76875314, 113913453, 167741728, 245534597, 357361857, 517293186]

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

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