A104854 - cp's OEIS frontend

A104854 Number of n-digit numbers using digits 0 to n-1 each exactly once and containing no 3-digit sequence in increasing or decreasing order.

n	a(n)
1	1
2	1
3	3
4	8
5	27
6	106
7	483
8	2498
9	14487
10	93106
11	657063
12	5051738
13	42033747
14	376353706
15	3608153643
16	36879266978
17	400339173807
18	4599894007906
19	55772890550223
20	711653491362218
21	9532624918010667
22	133746250733151706
23	1961498898620566803

[1, 1, 3, 8, 27, 106, 483, 2498, 14487, 93106, 657063, 5051738, 42033747, 376353706, 3608153643, 36879266978, 400339173807, 4599894007906, 55772890550223, 711653491362218, 9532624918010667, 133746250733151706, 1961498898620566803]

cp's OEIS Frontend

A104854 Number of n-digit numbers using digits 0 to n-1 each exactly once and containing no 3-digit sequence in increasing or decreasing order.

Table of values

List of values