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.

A339493 a(n) = A333650(n, 3) for n >= 3; a(1) = a(2) = 0.

Table of values

n a(n)
1 0
2 0
3 4
4 11
5 24
6 52
7 110
8 228
9 467
10 949
11 1916
12 3848
13 7696
14 15342
15 30505
16 60527
17 119892
18 237156
19 468590
20 925032
21 1824727
22 3597289
23 7088216
24 13961168
25 27489168
26 54110618
27 106489245
28 209531251
29 412217072
30 810865812
31 1594878078
32 3136673996
33 6168522827
34 12130206941

List of values

[0, 0, 4, 11, 24, 52, 110, 228, 467, 949, 1916, 3848, 7696, 15342, 30505, 60527, 119892, 237156, 468590, 925032, 1824727, 3597289, 7088216, 13961168, 27489168, 54110618, 106489245, 209531251, 412217072, 810865812, 1594878078, 3136673996, 6168522827, 12130206941]

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

Content is available under The OEIS End-User License Agreement.