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.

A195761 G.f.: exp( Sum_{n>=1} A055457(n) * 5^A055457(n) * x^n/n ) where 5^A055457(n) exactly divides 5*n.

Table of values

n a(n)
0 1
1 5
2 15
3 35
4 70
5 135
6 255
7 465
8 810
9 1345
10 2180
11 3480
12 5465
13 8410
14 12645
15 18720
16 27405
17 39690
18 56785
19 80120
20 111840
21 154805
22 212590
23 289485
24 390495
25 522640
26 694955
27 918490
28 1206310
29 1573495
30 2040260
31 2631955
32 3379065
33 4317210
34 5487145
35 6941780
36 8746180
37 10977565
38 13725310

List of values

[1, 5, 15, 35, 70, 135, 255, 465, 810, 1345, 2180, 3480, 5465, 8410, 12645, 18720, 27405, 39690, 56785, 80120, 111840, 154805, 212590, 289485, 390495, 522640, 694955, 918490, 1206310, 1573495, 2040260, 2631955, 3379065, 4317210, 5487145, 6941780, 8746180, 10977565, 13725310]