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.

A098409 Expansion of 1/(sqrt(1-3*x)*sqrt(1-7*x)).

Table of values

n a(n)
0 1
1 5
2 27
3 155
4 931
5 5775
6 36645
7 236325
8 1542195
9 10153775
10 67313377
11 448691985
12 3004182349
13 20188647185
14 136094684907
15 919884469275
16 6232016686995
17 42305974804575
18 287706424085745
19 1959685788407025
20 13367193276457881
21 91295551930615005
22 624255065007468207

List of values

[1, 5, 27, 155, 931, 5775, 36645, 236325, 1542195, 10153775, 67313377, 448691985, 3004182349, 20188647185, 136094684907, 919884469275, 6232016686995, 42305974804575, 287706424085745, 1959685788407025, 13367193276457881, 91295551930615005, 624255065007468207]

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

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