A213874 - cp's OEIS frontend

A213874 Number of words w where each letter of the 4-ary alphabet occurs n times and for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z.

n	a(n)
0	1
1	24
2	105
3	2575
4	115955
5	7364321
6	586368681
7	54862627919
8	5795673908453
9	673174876488400
10	84386541996407430
11	11262879538848476760
12	1584243362361105791448
13	233004893382083549345048
14	35610340402841609968092950
15	5627093485549459958456588775

[1, 24, 105, 2575, 115955, 7364321, 586368681, 54862627919, 5795673908453, 673174876488400, 84386541996407430, 11262879538848476760, 1584243362361105791448, 233004893382083549345048, 35610340402841609968092950, 5627093485549459958456588775]

cp's OEIS Frontend

A213874 Number of words w where each letter of the 4-ary alphabet occurs n times and for every prefix z of w we have #(z,a_i) = 0 or #(z,a_i) >= #(z,a_j) for all j>i and #(z,a_i) counts the occurrences of the i-th letter in z.

Table of values

List of values