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.

A126326 a(1) = 1; for n>1, a(n) = smallest number which is not a sum or product or power of any subset of the numbers a(1) to a(n-1).

Table of values

n a(n)
1 1
2 2
3 5
4 9
5 13
6 31
7 35
8 92
9 118
10 280
11 516
12 752
13 1618
14 1968
15 5090
16 6594
17 15620
18 19556
19 48364
20 61552
21 149028
22 188140
23 460272
24 583376
25 1419928
26 1796208
27 4382888
28 5549640
29 13524944
30 17117360
31 41741584
32 52840864
33 128817168
34 163051888
35 397550784
36 503232512
37 1226887072

List of values

[1, 2, 5, 9, 13, 31, 35, 92, 118, 280, 516, 752, 1618, 1968, 5090, 6594, 15620, 19556, 48364, 61552, 149028, 188140, 460272, 583376, 1419928, 1796208, 4382888, 5549640, 13524944, 17117360, 41741584, 52840864, 128817168, 163051888, 397550784, 503232512, 1226887072]