A027959 - cp's OEIS frontend

A027959 a(n) = Sum_{k=m..n} T(k,n-k), where m = floor((n+1)/2); a(n) is the n-th diagonal-sum of left justified array T given by A027948.

n	a(n)
1	1
2	1
3	2
4	3
5	5
6	7
7	12
8	16
9	27
10	37
11	59
12	85
13	129
14	192
15	285
16	428
17	634
18	949
19	1412
20	2104
21	3140
22	4671
23	6973
24	10378
25	15478
26	23058
27	34362
28	51216
29	76305
30	113736
31	169465
32	252561
33	376362
34	560851
35	835821
36	1245503
37	1856132
38	2765976
39	4121947

[1, 1, 2, 3, 5, 7, 12, 16, 27, 37, 59, 85, 129, 192, 285, 428, 634, 949, 1412, 2104, 3140, 4671, 6973, 10378, 15478, 23058, 34362, 51216, 76305, 113736, 169465, 252561, 376362, 560851, 835821, 1245503, 1856132, 2765976, 4121947]

cp's OEIS Frontend

A027959 a(n) = Sum_{k=m..n} T(k,n-k), where m = floor((n+1)/2); a(n) is the n-th diagonal-sum of left justified array T given by A027948.

Table of values

List of values