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.

A073391 Fourth convolution of A002605(n) (generalized (2,2)-Fibonacci), n >= 0, with itself.

Table of values

n a(n)
0 1
1 10
2 70
3 400
4 2020
5 9352
6 40600
7 167680
8 665440
9 2555840
10 9551936
11 34880000
12 124853120
13 439228160
14 1521839360
15 5202292736
16 17571249920
17 58712184320
18 194280061440
19 637228462080
20 2073332481024
21 6696470231040

List of values

[1, 10, 70, 400, 2020, 9352, 40600, 167680, 665440, 2555840, 9551936, 34880000, 124853120, 439228160, 1521839360, 5202292736, 17571249920, 58712184320, 194280061440, 637228462080, 2073332481024, 6696470231040]

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

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