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.

A121415 Column 3 of triangle A121412, in which row n of T=A121412 equals row (n-1) of T^(n+1) with an appended '1'.

Table of values

n a(n)
0 1
1 1
2 6
3 63
4 924
5 17226
6 387567
7 10182744
8 305379129
9 10280074116
10 383492465902
11 15692864353299
12 698622377024472
13 33604795914668178
14 1736477536255603281
15 95918139377302294980
16 5639487915973132301793
17 351611645300506492405623

List of values

[1, 1, 6, 63, 924, 17226, 387567, 10182744, 305379129, 10280074116, 383492465902, 15692864353299, 698622377024472, 33604795914668178, 1736477536255603281, 95918139377302294980, 5639487915973132301793, 351611645300506492405623]