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.

A017389 Expansion of g.f. 1/((1-3*x)*(1-5*x)*(1-7*x)).

Table of values

n a(n)
0 1
1 15
2 154
3 1350
4 10891
5 83685
6 623764
7 4558380
8 32875381
9 234980955
10 1669192174
11 11806149810
12 83252603071
13 585817587825
14 4115974729384
15 28888095527640
16 202598073849961
17 1420093671872295
18 9950191865139394
19 69699025028403870
20 488131588547752051
21 3418113197039242365

List of values

[1, 15, 154, 1350, 10891, 83685, 623764, 4558380, 32875381, 234980955, 1669192174, 11806149810, 83252603071, 585817587825, 4115974729384, 28888095527640, 202598073849961, 1420093671872295, 9950191865139394, 69699025028403870, 488131588547752051, 3418113197039242365]

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

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