A240614 - cp's OEIS frontend

A240614 Number of n-length words w over an 8-ary alphabet such that w is empty or a prefix z concatenated with letter a_i and i=1 or 0 < #(z,a_{i-1}) >= #(z,a_i), where #(z,a_i) counts the occurrences of the i-th letter in z.

n	a(n)
0	1
1	1
2	2
3	5
4	14
5	46
6	165
7	651
8	2771
9	12637
10	61352
11	314472
12	1691635
13	9472308
14	54830409
15	325818836
16	1975978117
17	12171736767
18	75862916184
19	477079866910
20	3020725897374
21	19228274412487
22	122916363687789
23	788480233155175
24	5073010198556052
25	32724394668837491

[1, 1, 2, 5, 14, 46, 165, 651, 2771, 12637, 61352, 314472, 1691635, 9472308, 54830409, 325818836, 1975978117, 12171736767, 75862916184, 477079866910, 3020725897374, 19228274412487, 122916363687789, 788480233155175, 5073010198556052, 32724394668837491]

cp's OEIS Frontend

A240614 Number of n-length words w over an 8-ary alphabet such that w is empty or a prefix z concatenated with letter a_i and i=1 or 0 < #(z,a_{i-1}) >= #(z,a_i), where #(z,a_i) counts the occurrences of the i-th letter in z.

Table of values

List of values