cp's OEIS Frontend

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.

A322116 Main diagonal of triangle A321600; a(n) = A321600(n,n-1) for n >= 1.

Table of values

n a(n)
1 2
2 6
3 26
4 78
5 242
6 726
7 2186
8 6558
9 19682
10 59046
11 177146
12 531438
13 1594322
14 4782966
15 14348906
16 43046718
17 129140162
18 387420486
19 1162261466
20 3486784398
21 10460353202
22 31381059606
23 94143178826
24 282429536478
25 847288609442
26 2541865828326
27 7625597484986
28 22876792454958
29 68630377364882
30 205891132094646
31 617673396283946
32 1853020188851838
33 5559060566555522
34 16677181699666566

List of values

[2, 6, 26, 78, 242, 726, 2186, 6558, 19682, 59046, 177146, 531438, 1594322, 4782966, 14348906, 43046718, 129140162, 387420486, 1162261466, 3486784398, 10460353202, 31381059606, 94143178826, 282429536478, 847288609442, 2541865828326, 7625597484986, 22876792454958, 68630377364882, 205891132094646, 617673396283946, 1853020188851838, 5559060566555522, 16677181699666566]

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

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