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.

A271950 Somos's sequence {b(5,n)} defined in comment in A078495: a(0)=a(1)=...=a(12)=1; for n>=13, a(n)=(a(n-1)*a(n-12)+a(n-6)*a(n-7))/a(n-13).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 2
14 3
15 4
16 5
17 6
18 7
19 9
20 15
21 27
22 47
23 77
24 119
25 301
26 519
27 827
28 1351
29 2345
30 4263
31 10598
32 35021
33 91652
34 200923
35 396578
36 742721
37 2258305
38 5126953
39 14354017
40 45716169
41 138331649
42 377080865
43 1330892225
44 5490413305
45 16470110241

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 9, 15, 27, 47, 77, 119, 301, 519, 827, 1351, 2345, 4263, 10598, 35021, 91652, 200923, 396578, 742721, 2258305, 5126953, 14354017, 45716169, 138331649, 377080865, 1330892225, 5490413305, 16470110241]