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.

A026645 a(n) = Sum_{k=0..floor(n/2)} A026637(n, k).

Table of values

n a(n)
0 1
1 1
2 3
3 5
4 14
5 21
6 55
7 85
8 216
9 341
10 848
11 1365
12 3340
13 5461
14 13191
15 21845
16 52208
17 87381
18 206968
19 349525
20 821514
21 1398101
22 3264044
23 5592405
24 12979006
25 22369621
26 51642594
27 89478485
28 205592744
29 357913941
30 818848135
31 1431655765
32 3262611696
33 5726623061
34 13003800704
35 22906492245

List of values

[1, 1, 3, 5, 14, 21, 55, 85, 216, 341, 848, 1365, 3340, 5461, 13191, 21845, 52208, 87381, 206968, 349525, 821514, 1398101, 3264044, 5592405, 12979006, 22369621, 51642594, 89478485, 205592744, 357913941, 818848135, 1431655765, 3262611696, 5726623061, 13003800704, 22906492245]