A321846 Number of words w of length n such that each letter of the denary alphabet is used at least once 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.

3628800, 19958400, 139708800, 752431680, 4239995760, 21789167400, 114909631200, 584574333840, 3027714547410, 15487149249315, 80380034496675, 416678817402540, 2188661321134365, 11547842522164410, 61697603618819175, 332093455309359975, 1809348373235738090

Offset

10,1

Links

Table of n, a(n) for n=10..26.

Crossrefs

Column k=10 of A257783.

Sequence in context: A269128 A068158 A011521 * A226889 A284207 A061603

Adjacent sequences: A321843 A321844 A321845 * A321847 A321848 A321849

Keyword

nonn

Author

Alois P. Heinz, Nov 19 2018

Status

approved