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.

A087503 a(n) = 3(a(n-2) + 1), with a(0) = 1, a(1) = 3.

Table of values

n a(n)
0 1
1 3
2 6
3 12
4 21
5 39
6 66
7 120
8 201
9 363
10 606
11 1092
12 1821
13 3279
14 5466
15 9840
16 16401
17 29523
18 49206
19 88572
20 147621
21 265719
22 442866
23 797160
24 1328601
25 2391483
26 3985806
27 7174452
28 11957421
29 21523359
30 35872266
31 64570080
32 107616801
33 193710243

List of values

[1, 3, 6, 12, 21, 39, 66, 120, 201, 363, 606, 1092, 1821, 3279, 5466, 9840, 16401, 29523, 49206, 88572, 147621, 265719, 442866, 797160, 1328601, 2391483, 3985806, 7174452, 11957421, 21523359, 35872266, 64570080, 107616801, 193710243]

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

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