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A293803
Number of multisets of nonempty words with a total of n letters over octonary alphabet containing the eighth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
2
1, 9, 82, 563, 3807, 23376, 142085, 829038, 4816390, 27477989, 156716051, 887263747, 5034299169, 28513927121, 162089445027, 922536360293, 5273968531519, 30236181831043, 174184141284927, 1007162425272715, 5852489042303046, 34148843838375080, 200241641820235902
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OFFSET
8,2
LINKS
Alois P. Heinz,
Table of n, a(n) for n = 8..1000
FORMULA
a(n) =
A293738
(n) -
A293737
(n).
CROSSREFS
Column k=8 of
A293109
.
Cf.
A293737
,
A293738
.
Sequence in context:
A263816
A345143
A275917
*
A263817
A288789
A033119
Adjacent sequences:
A293800
A293801
A293802
*
A293804
A293805
A293806
KEYWORD
nonn
AUTHOR
Alois P. Heinz
, Oct 16 2017
STATUS
approved
