A026569 - cp's OEIS frontend

A026569 a(n) = T(n,n), T given by A026568. Also a(n) = 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	5
4	13
5	27
6	67
7	153
8	375
9	893
10	2189
11	5319
12	13089
13	32155
14	79479
15	196573
16	487833
17	1212135
18	3018355
19	7525585
20	18792303
21	46980373
22	117589689
23	294613155
24	738844719
25	1854484305
26	4658460165
27	11710592711
28	29458662005
29	74151824271

[1, 1, 3, 5, 13, 27, 67, 153, 375, 893, 2189, 5319, 13089, 32155, 79479, 196573, 487833, 1212135, 3018355, 7525585, 18792303, 46980373, 117589689, 294613155, 738844719, 1854484305, 4658460165, 11710592711, 29458662005, 74151824271]

cp's OEIS Frontend

A026569 a(n) = T(n,n), T given by A026568. Also a(n) = number of integer strings s(0),...,s(n) counted by T, such that s(n)=0.

Table of values

List of values