A240613 Number of n-length words w over a 7-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.
1, 1, 2, 5, 14, 46, 165, 651, 2770, 12601, 60686, 305658, 1595454, 8547278, 46685641, 258530476, 1446098060, 8148181066, 46165702543, 262699285827, 1500141404881, 8592741193076, 49353003881425, 284185414898313, 1640366631269049, 9490895165369217
Offset: 0
Keywords
Crossrefs
Column k=7 of A240608.