A293889
Number of sets 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.
Original entry on oeis.org
1, 9, 81, 554, 3723, 22795, 138112, 804518, 4666521, 26601027, 151607448, 858078020, 4867646261, 27569926921, 156731332711, 892188573587, 5101471557918, 29254697416411, 168575093334130, 975019430127356, 5667406033511452, 33079212453456235, 194029375272192986
Offset: 8
A293890
Number of sets of nonempty words with a total of n letters over nonary alphabet containing the ninth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
Original entry on oeis.org
1, 10, 100, 752, 5541, 36977, 243498, 1535725, 9622087, 59096165, 362231798, 2201156531, 13388589925, 81219563343, 494086167465, 3007727300865, 18380979656356, 112620528644918, 693158020152524, 4281848080792280, 26578705462004141, 165681105341062256
Offset: 9
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.
Original entry on oeis.org
1, 11, 121, 992, 7948, 57368, 407495, 2762306, 18558261, 121903562, 797628339, 5164110575, 33416303576, 215354872472, 1390196456927, 8971242266557, 58072455010621, 376619368091666, 2452238779936085, 16018094650161058, 105103750467074777, 692390137170794830
Offset: 10