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.

A343799 Total sum of the elements in all nondecreasing sequences s1, s2, ..., s_n of powers of 2 such that s_i <= 1 + Sum_{j=1..i-1} s_j.

Table of values

n a(n)
0 0
1 1
2 5
3 19
4 72
5 260
6 923
7 3243
8 11313
9 39275
10 135938
11 469544
12 1619688
13 5582154
14 19227215
15 66200580
16 227874107
17 784248508
18 2698752555
19 9286235592
20 31951747845
21 109934789410
22 378238848290
23 1301340023409
24 4477248965334
25 15403837196135
26 52996202385909

List of values

[0, 1, 5, 19, 72, 260, 923, 3243, 11313, 39275, 135938, 469544, 1619688, 5582154, 19227215, 66200580, 227874107, 784248508, 2698752555, 9286235592, 31951747845, 109934789410, 378238848290, 1301340023409, 4477248965334, 15403837196135, 52996202385909]