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.

A325581 G.f.: Sum_{n>=0} (n+1) * x^n * (1+x)^(n*(n+1)).

Table of values

n a(n)
0 1
1 2
2 7
3 24
4 98
5 430
6 2062
7 10610
8 58240
9 338984
10 2081189
11 13423258
12 90626012
13 638509008
14 4682120763
15 35650040782
16 281266115870
17 2295142774336
18 19338107378888
19 167987656339604
20 1502475101768767
21 13818574571596432
22 130542011977462175
23 1265358001625542030
24 12572822521590475349
25 127943980062492526520
26 1332336499429857507073
27 14186629118985647254622
28 154348478009342665050329
29 1714707987491310848285920

List of values

[1, 2, 7, 24, 98, 430, 2062, 10610, 58240, 338984, 2081189, 13423258, 90626012, 638509008, 4682120763, 35650040782, 281266115870, 2295142774336, 19338107378888, 167987656339604, 1502475101768767, 13818574571596432, 130542011977462175, 1265358001625542030, 12572822521590475349, 127943980062492526520, 1332336499429857507073, 14186629118985647254622, 154348478009342665050329, 1714707987491310848285920]

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

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