A293888 - cp's OEIS frontend

A293888 Number of sets of nonempty words with a total of n letters over septenary alphabet containing the seventh letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

n	a(n)
7	1
8	8
9	64
10	394
11	2390
12	13297
13	73408
14	391136
15	2079440
16	10889818
17	57092581
18	297655901
19	1556501986
20	8132631687
21	42662224461
22	224171916523
23	1183189769473
24	6263511343367
25	33311244068612
26	177803544643092
27	953453596829798
28	5132942333604244
29	27758886429083153

[1, 8, 64, 394, 2390, 13297, 73408, 391136, 2079440, 10889818, 57092581, 297655901, 1556501986, 8132631687, 42662224461, 224171916523, 1183189769473, 6263511343367, 33311244068612, 177803544643092, 953453596829798, 5132942333604244, 27758886429083153]

cp's OEIS Frontend

A293888 Number of sets of nonempty words with a total of n letters over septenary alphabet containing the seventh letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

Table of values

List of values