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.

A292119 O.g.f. equals the square of the e.g.f. of A291561.

Table of values

n a(n)
2 1
3 10
4 130
5 2100
6 40950
7 943740
8 25269300
9 774635400
10 26836251750
11 1038607069500
12 44448725821500
13 2084869401615000
14 106355178306877500
15 5861473946222895000
16 346999395775257225000
17 21956626245257906202000
18 1478562610889805715023750
19 105561794005139231136877500
20 7963731010308915234880987500
21 632966979266333111428303275000
22 52862553418201438508049805852500

List of values

[1, 10, 130, 2100, 40950, 943740, 25269300, 774635400, 26836251750, 1038607069500, 44448725821500, 2084869401615000, 106355178306877500, 5861473946222895000, 346999395775257225000, 21956626245257906202000, 1478562610889805715023750, 105561794005139231136877500, 7963731010308915234880987500, 632966979266333111428303275000, 52862553418201438508049805852500]

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

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