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.

A027299 a(n) = Sum_{k=0..m} (k+1) * A026022(n, m-k), where m=n for n=0,1 and m = floor((n+3)/2) for n >= 2.

Table of values

n a(n)
0 1
1 3
2 8
3 20
4 32
5 79
6 128
7 312
8 512
9 1234
10 2048
11 4888
12 8192
13 19387
14 32768
15 76976
16 131072
17 305902
18 524288
19 1216536
20 2097152
21 4840950
22 8388608
23 19273360
24 33554432
25 76766564
26 134217728
27 305877616
28 536870912
29 1219164499
30 2147483648

List of values

[1, 3, 8, 20, 32, 79, 128, 312, 512, 1234, 2048, 4888, 8192, 19387, 32768, 76976, 131072, 305902, 524288, 1216536, 2097152, 4840950, 8388608, 19273360, 33554432, 76766564, 134217728, 305877616, 536870912, 1219164499, 2147483648]