A257741 - cp's OEIS frontend

A257741 Number of multisets of nonempty words with a total of n letters over n-ary alphabet such that if a letter occurs in the multiset all predecessors occur at least once.

n	a(n)
0	1
1	1
2	5
3	30
4	241
5	2356
6	27315
7	364319
8	5488468
9	92040141
10	1698933390
11	34206221161
12	745622368096
13	17486274798203
14	438859174516837
15	11732964019785027
16	332818604033186036
17	9981540739647177238
18	315518234680527952625
19	10482878954868309043158
20	365158449014981632341391

[1, 1, 5, 30, 241, 2356, 27315, 364319, 5488468, 92040141, 1698933390, 34206221161, 745622368096, 17486274798203, 438859174516837, 11732964019785027, 332818604033186036, 9981540739647177238, 315518234680527952625, 10482878954868309043158, 365158449014981632341391]

cp's OEIS Frontend

A257741 Number of multisets of nonempty words with a total of n letters over n-ary alphabet such that if a letter occurs in the multiset all predecessors occur at least once.

Table of values

List of values