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.

A144895 Second column of triangle A134134 (S2'(2) = S1hat(2)).

Table of values

n a(n)
0 1
1 2
2 10
3 36
4 204
5 1104
6 7776
7 57600
8 505440
9 4803840
10 51442560
11 597784320
12 7609593600
13 104364288000
14 1541746483200
15 24329797632000
16 409042632499200
17 7290954768384000
18 137384159367168000
19 2727604332085248000
20 56913717580296192000
21 1244955414746824704000

List of values

[1, 2, 10, 36, 204, 1104, 7776, 57600, 505440, 4803840, 51442560, 597784320, 7609593600, 104364288000, 1541746483200, 24329797632000, 409042632499200, 7290954768384000, 137384159367168000, 2727604332085248000, 56913717580296192000, 1244955414746824704000]

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

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