A142976 - cp's OEIS frontend

A142976 a(n) = (1/18)(9n^2 + 21n + 10 - 4^(n+2)(3n+5) + 107^(n+1)).

n	a(n)
1	1
2	39
3	546
4	5482
5	47175
6	373809
7	2824048
8	20729340
9	149474205
10	1065892555
11	7547929806
12	53215791774
13	374165893891
14	2626319535477
15	18415017346620
16	129036833755984
17	903819045351033
18	6329115592649775
19	44313888005135290
20	310239730485553170

[1, 39, 546, 5482, 47175, 373809, 2824048, 20729340, 149474205, 1065892555, 7547929806, 53215791774, 374165893891, 2626319535477, 18415017346620, 129036833755984, 903819045351033, 6329115592649775, 44313888005135290, 310239730485553170]

cp's OEIS Frontend

A142976 a(n) = (1/18)(9n^2 + 21n + 10 - 4^(n+2)(3n+5) + 107^(n+1)).

Table of values

List of values

cp's OEIS Frontend

A142976 a(n) = (1/18)*(9*n^2 + 21*n + 10 - 4^(n+2)*(3*n+5) + 10*7^(n+1)).

Table of values

List of values

A142976 a(n) = (1/18)(9n^2 + 21n + 10 - 4^(n+2)(3n+5) + 107^(n+1)).