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.

A160430 The 3-D toothpick sequence A160160, but using toothpicks of length 4; a(n) is the number of nodes occupied after n steps.

Table of values

n a(n)
0 0
1 5
2 13
3 29
4 57
5 85
6 113
7 145
8 209
9 329
10 509
11 613
12 665
13 697
14 761
15 881
16 1073
17 1273
18 1505
19 1817
20 2377
21 3217
22 4309
23 4761
24 4921
25 5009
26 5097
27 5233
28 5425
29 5625
30 5857
31 6169
32 6729
33 7569
34 8697
35 9425
36 10017
37 10641
38 11601
39 12873

List of values

[0, 5, 13, 29, 57, 85, 113, 145, 209, 329, 509, 613, 665, 697, 761, 881, 1073, 1273, 1505, 1817, 2377, 3217, 4309, 4761, 4921, 5009, 5097, 5233, 5425, 5625, 5857, 6169, 6729, 7569, 8697, 9425, 10017, 10641, 11601, 12873]

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

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