A293891 Number of sets of nonempty words with a total of n letters over denary alphabet containing the tenth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

1, 11, 121, 992, 7948, 57368, 407495, 2762306, 18558261, 121903562, 797628339, 5164110575, 33416303576, 215354872472, 1390196456927, 8971242266557, 58072455010621, 376619368091666, 2452238779936085, 16018094650161058, 105103750467074777, 692390137170794830

Offset

10,2

Links

Alois P. Heinz, Table of n, a(n) for n = 10..1000

Formula

a(n) = A293749(n) - A293748(n).

Crossrefs

Column k=10 of A293113.

Cf. A293748, A293749.

Sequence in context: A223616 A223665 A068179 * A218262 A006940 A070844

Adjacent sequences: A293888 A293889 A293890 * A293892 A293893 A293894

Keyword

nonn

Author

Alois P. Heinz, Oct 18 2017

Status

approved