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.

A372415 Coefficient of x^n in the expansion of ( (1-x+x^3) / (1-x)^3 )^n.

Table of values

n a(n)
0 1
1 2
2 10
3 59
4 366
5 2332
6 15121
7 99276
8 657894
9 4391438
10 29482320
11 198865680
12 1346655921
13 9149295482
14 62336961732
15 425760311734
16 2914151872614
17 19983724103726
18 137267022656710
19 944287970305935
20 6504676822047876
21 44861522295224400
22 309742638630690264

List of values

[1, 2, 10, 59, 366, 2332, 15121, 99276, 657894, 4391438, 29482320, 198865680, 1346655921, 9149295482, 62336961732, 425760311734, 2914151872614, 19983724103726, 137267022656710, 944287970305935, 6504676822047876, 44861522295224400, 309742638630690264]

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

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