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.

A178742 Partial sums of floor(2^n/9).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 4
6 11
7 25
8 53
9 109
10 222
11 449
12 904
13 1814
14 3634
15 7274
16 14555
17 29118
18 58245
19 116499
20 233007
21 466023
22 932056
23 1864123
24 3728258
25 7456528
26 14913068
27 29826148
28 59652309
29 119304632
30 238609279
31 477218573
32 954437161

List of values

[0, 0, 0, 0, 1, 4, 11, 25, 53, 109, 222, 449, 904, 1814, 3634, 7274, 14555, 29118, 58245, 116499, 233007, 466023, 932056, 1864123, 3728258, 7456528, 14913068, 29826148, 59652309, 119304632, 238609279, 477218573, 954437161]