A107979 - cp's OEIS frontend

A107979 a(n) = 4a(n-1) + 2a(n-2) for n>1, with a(0)=2, a(1)=9.

n	a(n)
0	2
1	9
2	40
3	178
4	792
5	3524
6	15680
7	69768
8	310432
9	1381264
10	6145920
11	27346208
12	121676672
13	541399104
14	2408949760
15	10718597248
16	47692288512
17	212206348544
18	944209971200
19	4201252581888
20	18693430269952
21	83176226243584

[2, 9, 40, 178, 792, 3524, 15680, 69768, 310432, 1381264, 6145920, 27346208, 121676672, 541399104, 2408949760, 10718597248, 47692288512, 212206348544, 944209971200, 4201252581888, 18693430269952, 83176226243584]

cp's OEIS Frontend

A107979 a(n) = 4a(n-1) + 2a(n-2) for n>1, with a(0)=2, a(1)=9.

Table of values

List of values

cp's OEIS Frontend

A107979 a(n) = 4*a(n-1) + 2*a(n-2) for n>1, with a(0)=2, a(1)=9.

Table of values

List of values

A107979 a(n) = 4a(n-1) + 2a(n-2) for n>1, with a(0)=2, a(1)=9.