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.

A255688 G.f.: (2*x+1)/(2*sqrt(4*x^2-8*x+1)) + 1/2.

Table of values

n a(n)
0 1
1 3
2 15
3 90
4 579
5 3858
6 26262
7 181380
8 1265955
9 8906706
10 63058530
11 448716876
12 3206387790
13 22992276180
14 165364807308
15 1192393813320
16 8617219956003
17 62397513984210
18 452607991376490
19 3288138397237884
20 23921128800374874
21 174244027232971548
22 1270655996584434420

List of values

[1, 3, 15, 90, 579, 3858, 26262, 181380, 1265955, 8906706, 63058530, 448716876, 3206387790, 22992276180, 165364807308, 1192393813320, 8617219956003, 62397513984210, 452607991376490, 3288138397237884, 23921128800374874, 174244027232971548, 1270655996584434420]

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

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