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.

A072221 a(n) = 6*a(n-1) - a(n-2) + 2, with a(0)=1, a(1)=4.

Table of values

n a(n)
0 1
1 4
2 25
3 148
4 865
5 5044
6 29401
7 171364
8 998785
9 5821348
10 33929305
11 197754484
12 1152597601
13 6717831124
14 39154389145
15 228208503748
16 1330096633345
17 7752371296324
18 45184131144601
19 263352415571284
20 1534930362283105
21 8946229758127348
22 52142448186480985

List of values

[1, 4, 25, 148, 865, 5044, 29401, 171364, 998785, 5821348, 33929305, 197754484, 1152597601, 6717831124, 39154389145, 228208503748, 1330096633345, 7752371296324, 45184131144601, 263352415571284, 1534930362283105, 8946229758127348, 52142448186480985]

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

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