A226888 - cp's OEIS frontend

A226888 Number of n-length words w over a 9-ary alphabet {a1,a2,...,a9} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a9) >= 1, where #(w,x) counts the letters x in word w.

n	a(n)
9	362880
10	1814400
11	16632000
12	119750400
13	1003242240
14	7749181440
15	68518850400
16	584994009600
17	5490179735040
18	51882551360640
19	405925296678720
20	3438148872412800
21	28858842800988480
22	242180235433825920
23	2068546823359410240
24	17716539920908308480
25	155272065377761886400

[362880, 1814400, 16632000, 119750400, 1003242240, 7749181440, 68518850400, 584994009600, 5490179735040, 51882551360640, 405925296678720, 3438148872412800, 28858842800988480, 242180235433825920, 2068546823359410240, 17716539920908308480, 155272065377761886400]

cp's OEIS Frontend

A226888 Number of n-length words w over a 9-ary alphabet {a1,a2,...,a9} such that #(w,a1) >= #(w,a2) >= ... >= #(w,a9) >= 1, where #(w,x) counts the letters x in word w.

Table of values

List of values