A318796 - cp's OEIS frontend

A318796 Number of 2n-length words w over an n-ary alphabet {a1, a2, ..., an} such that #(w,a1) >= #(w,a2) >= ... >= #(w,an) >= 1, where #(w,x) counts the letters x in word w.

n	a(n)
0	1
1	1
2	10
3	180
4	6496
5	322560
6	25098480
7	2437475040
8	322951749120
9	51882551360640
10	10494386800934400
11	2503138912988313600
12	720738068391525381120
13	239324670990042333696000
14	92995858936970165240064000
15	41062460981196018797072640000
16	20742554869763399771711348736000

[1, 1, 10, 180, 6496, 322560, 25098480, 2437475040, 322951749120, 51882551360640, 10494386800934400, 2503138912988313600, 720738068391525381120, 239324670990042333696000, 92995858936970165240064000, 41062460981196018797072640000, 20742554869763399771711348736000]

cp's OEIS Frontend

A318796 Number of 2n-length words w over an n-ary alphabet {a1, a2, ..., an} such that #(w,a1) >= #(w,a2) >= ... >= #(w,an) >= 1, where #(w,x) counts the letters x in word w.

Table of values

List of values