A215492 - cp's OEIS frontend

A215492 a(n) = 21a(n-2) + 7a(n-3), with a(0)=0, a(1)=3, and a(2)=6.

n	a(n)
0	0
1	3
2	6
3	63
4	147
5	1365
6	3528
7	29694
8	83643
9	648270
10	1964361
11	14199171
12	45789471
13	311933118
14	1060973088
15	6871121775
16	24463966674
17	151720368891
18	561841152579
19	3357375513429
20	12860706786396
21	74437773850062
22	293576471108319
23	1653218198356074
24	6686170310225133

[0, 3, 6, 63, 147, 1365, 3528, 29694, 83643, 648270, 1964361, 14199171, 45789471, 311933118, 1060973088, 6871121775, 24463966674, 151720368891, 561841152579, 3357375513429, 12860706786396, 74437773850062, 293576471108319, 1653218198356074, 6686170310225133]

cp's OEIS Frontend

A215492 a(n) = 21a(n-2) + 7a(n-3), with a(0)=0, a(1)=3, and a(2)=6.

Table of values

List of values

cp's OEIS Frontend

A215492 a(n) = 21*a(n-2) + 7*a(n-3), with a(0)=0, a(1)=3, and a(2)=6.

Table of values

List of values

A215492 a(n) = 21a(n-2) + 7a(n-3), with a(0)=0, a(1)=3, and a(2)=6.