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.

A089471 Equals the self-convolution of A089470 and also the hyperbinomial transform of A089470.

Table of values

n a(n)
0 1
1 2
2 9
3 66
4 680
5 9054
6 147811
7 2855574
8 63656423
9 1607072112
10 45294892304
11 1409197189256
12 47954491442089
13 1771493331491354
14 70590010219153189
15 3017771375030039066
16 137763757493141082536
17 6688261925293875095950

List of values

[1, 2, 9, 66, 680, 9054, 147811, 2855574, 63656423, 1607072112, 45294892304, 1409197189256, 47954491442089, 1771493331491354, 70590010219153189, 3017771375030039066, 137763757493141082536, 6688261925293875095950]

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

Content is available under The OEIS End-User License Agreement.