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.

A026397 Sum{T(n-k,k)}, 0<=k<=[ n/2 ], where T is the array in A026386.

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 10
5 17
6 31
7 53
8 92
9 163
10 282
11 492
12 863
13 1501
14 2621
15 4582
16 7987
17 13946
18 24354
19 42489
20 74179
21 129497
22 226000
23 394523
24 688670
25 1202020
26 2098239
27 3662553
28 6392969
29 11159290
30 19478867
31 34000750
32 59349706
33 103596641

List of values

[1, 2, 3, 6, 10, 17, 31, 53, 92, 163, 282, 492, 863, 1501, 2621, 4582, 7987, 13946, 24354, 42489, 74179, 129497, 226000, 394523, 688670, 1202020, 2098239, 3662553, 6392969, 11159290, 19478867, 34000750, 59349706, 103596641]