A027010 - cp's OEIS frontend

A027010 a(n) = Sum_{k=floor((n+1)/2)..n} T(k,n-k); i.e., a(n) is the n-th diagonal sum of left-justified array T given by A026998.

n	a(n)
1	1
2	1
3	2
4	5
5	6
6	13
7	17
8	29
9	43
10	64
11	100
12	144
13	223
14	326
15	492
16	733
17	1089
18	1634
19	2421
20	3626
21	5389
22	8041
23	11985
24	17847
25	26624
26	39640
27	59112
28	88059
29	131242
30	195592
31	291433
32	434369
33	647218
34	964581
35	1437374
36	2142013
37	3192113
38	4756821

[1, 1, 2, 5, 6, 13, 17, 29, 43, 64, 100, 144, 223, 326, 492, 733, 1089, 1634, 2421, 3626, 5389, 8041, 11985, 17847, 26624, 39640, 59112, 88059, 131242, 195592, 291433, 434369, 647218, 964581, 1437374, 2142013, 3192113, 4756821]

cp's OEIS Frontend

A027010 a(n) = Sum_{k=floor((n+1)/2)..n} T(k,n-k); i.e., a(n) is the n-th diagonal sum of left-justified array T given by A026998.

Table of values

List of values