A026553 - cp's OEIS frontend

A026553 a(n) = T(n,n), T given by A026552. Also a(n) is the number of integer strings s(0),...,s(n) counted by T, such that s(n)=0.

n	a(n)
0	1
1	1
2	3
3	4
4	12
5	20
6	58
7	104
8	300
9	556
10	1608
11	3032
12	8806
13	16778
14	48924
15	93872
16	274644
17	529684
18	1553940
19	3008864
20	8846772
21	17184188
22	50618184
23	98577712
24	290817566
25	567591142
26	1676640462
27	3278348608
28	9694857750
29	18986482250

[1, 1, 3, 4, 12, 20, 58, 104, 300, 556, 1608, 3032, 8806, 16778, 48924, 93872, 274644, 529684, 1553940, 3008864, 8846772, 17184188, 50618184, 98577712, 290817566, 567591142, 1676640462, 3278348608, 9694857750, 18986482250]

cp's OEIS Frontend

A026553 a(n) = T(n,n), T given by A026552. Also a(n) is the number of integer strings s(0),...,s(n) counted by T, such that s(n)=0.

Table of values

List of values