A226886 - cp's OEIS frontend

A226886 Number of n-length words w over a 7-ary alphabet {a1,a2,...,a7} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a7) >= 1, where #(w,x) counts the letters x in word w.

n	a(n)
7	5040
8	20160
9	151200
10	907200
11	6431040
12	42577920
13	326280240
14	2437475040
15	15076381320
16	101442781440
17	685186844160
18	4578510605760
19	31826713309344
20	215132601512160
21	1519348223060640
22	9879977905237440
23	67264821737934744
24	453057807190266432
25	3094793914863208800

[5040, 20160, 151200, 907200, 6431040, 42577920, 326280240, 2437475040, 15076381320, 101442781440, 685186844160, 4578510605760, 31826713309344, 215132601512160, 1519348223060640, 9879977905237440, 67264821737934744, 453057807190266432, 3094793914863208800]

cp's OEIS Frontend

A226886 Number of n-length words w over a 7-ary alphabet {a1,a2,...,a7} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a7) >= 1, where #(w,x) counts the letters x in word w.

Table of values

List of values