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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.

A141351 a(n) = C(n) + 1 - 0^n where C(n) = A000108(n).

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 15
5 43
6 133
7 430
8 1431
9 4863
10 16797
11 58787
12 208013
13 742901
14 2674441
15 9694846
16 35357671
17 129644791
18 477638701
19 1767263191
20 6564120421
21 24466267021
22 91482563641
23 343059613651
24 1289904147325
25 4861946401453
26 18367353072153
27 69533550916005

List of values

[1, 2, 3, 6, 15, 43, 133, 430, 1431, 4863, 16797, 58787, 208013, 742901, 2674441, 9694846, 35357671, 129644791, 477638701, 1767263191, 6564120421, 24466267021, 91482563641, 343059613651, 1289904147325, 4861946401453, 18367353072153, 69533550916005]

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

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