A381219 - cp's OEIS frontend

A381219 a(n) = (6^n+2^n-23^n)(n-1)!/2.

n	a(n)
1	1
2	11
3	170
4	3450
5	87864
6	2715720
7	99248400
8	4200210000
9	202383054720
10	10949741066880
11	657619863264000
12	43423960900320000
13	3127284944109849600
14	243957907264508236800
15	20493712266753293568000
16	1844490309401727187200000
17	177073768932670444843008000
18	18061662138488384327847936000
19	1950666948832313303630438400000

[1, 11, 170, 3450, 87864, 2715720, 99248400, 4200210000, 202383054720, 10949741066880, 657619863264000, 43423960900320000, 3127284944109849600, 243957907264508236800, 20493712266753293568000, 1844490309401727187200000, 177073768932670444843008000, 18061662138488384327847936000, 1950666948832313303630438400000]

cp's OEIS Frontend

A381219 a(n) = (6^n+2^n-23^n)(n-1)!/2.

Table of values

List of values

cp's OEIS Frontend

A381219 a(n) = (6^n+2^n-2*3^n)*(n-1)!/2.

Table of values

List of values

A381219 a(n) = (6^n+2^n-23^n)(n-1)!/2.