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.

A348473 a(n) = Sum_{k=1..A003056(n)} 2^(T(n,k)-1), where T(n,k) = k-th term in row n of A235791.

Table of values

n a(n)
1 1
2 2
3 5
4 9
5 18
6 35
7 69
8 133
9 266
10 523
11 1043
12 2069
13 4133
14 8230
15 16459
16 32843
17 65675
18 131221
19 262421
20 524566
21 1049127
22 2097707
23 4195371
24 8389707
25 16779341
26 33556565
27 67113110
28 134221975
29 268443799
30 536879403
31 1073758507
32 2147500331
33 4295000621
34 8589967949
35 17179935318

List of values

[1, 2, 5, 9, 18, 35, 69, 133, 266, 523, 1043, 2069, 4133, 8230, 16459, 32843, 65675, 131221, 262421, 524566, 1049127, 2097707, 4195371, 8389707, 16779341, 33556565, 67113110, 134221975, 268443799, 536879403, 1073758507, 2147500331, 4295000621, 8589967949, 17179935318]

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

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