A293800 Number of multisets of nonempty words with a total of n letters over quinary alphabet containing the fifth 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, 6, 37, 178, 852, 3767, 16576, 70635, 300433, 1260163, 5287178, 22058377, 92181691, 384663989, 1609206870, 6737170404, 28291573975, 119043337521, 502559706310, 2127305239457, 9035671605064, 38494638887783, 164564824326835, 705742561369640, 3036895648331815

Offset

5,2

Links

Alois P. Heinz, Table of n, a(n) for n = 5..1000

Formula

a(n) = A293735(n) - A293734(n).

Crossrefs

Column k=5 of A293109.

Cf. A293734, A293735.

Sequence in context: A047670 A338708 A129552 * A327611 A056338 A056328

Adjacent sequences: A293797 A293798 A293799 * A293801 A293802 A293803

Keyword

nonn

Author

Alois P. Heinz, Oct 16 2017

Status

approved