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.

A124554 Row 4 of table A124550; also equals the self-convolution 4th power of A124564, which is row 4 of table A124560.

Table of values

n a(n)
0 1
1 4
2 26
3 204
4 1899
5 21180
6 287568
7 4802716
8 99084889
9 2531896840
10 80346294380
11 3173108251044
12 156222183969181
13 9603287701405136
14 738066706464107408
15 71003673625149131020
16 8559188942710590217013
17 1294012524894298022238700

List of values

[1, 4, 26, 204, 1899, 21180, 287568, 4802716, 99084889, 2531896840, 80346294380, 3173108251044, 156222183969181, 9603287701405136, 738066706464107408, 71003673625149131020, 8559188942710590217013, 1294012524894298022238700]