A370888 - cp's OEIS frontend

A370888 a(n) = (n-1)(2(n-2)!+1).

n	a(n)
2	3
3	6
4	15
5	52
6	245
7	1446
8	10087
9	80648
10	725769
11	7257610
12	79833611
13	958003212
14	12454041613
15	174356582414
16	2615348736015
17	41845579776016
18	711374856192017
19	12804747411456018
20	243290200817664019
21	4865804016353280020
22	102181884343418880021
23	2248001455555215360022
24	51704033477769953280023
25	1240896803466478878720024

[3, 6, 15, 52, 245, 1446, 10087, 80648, 725769, 7257610, 79833611, 958003212, 12454041613, 174356582414, 2615348736015, 41845579776016, 711374856192017, 12804747411456018, 243290200817664019, 4865804016353280020, 102181884343418880021, 2248001455555215360022, 51704033477769953280023, 1240896803466478878720024]

cp's OEIS Frontend

A370888 a(n) = (n-1)(2(n-2)!+1).

Table of values

List of values

cp's OEIS Frontend

A370888 a(n) = (n-1)*(2*(n-2)!+1).

Table of values

List of values

A370888 a(n) = (n-1)(2(n-2)!+1).