A097924 - cp's OEIS frontend

A097924 a(n) = 4*a(n-1) + a(n-2), n>=2, a(0) = 2, a(1) = 7.

n	a(n)
0	2
1	7
2	30
3	127
4	538
5	2279
6	9654
7	40895
8	173234
9	733831
10	3108558
11	13168063
12	55780810
13	236291303
14	1000946022
15	4240075391
16	17961247586
17	76085065735
18	322301510526
19	1365291107839
20	5783465941882
21	24499154875367
22	103780085443350
23	439619496648767
24	1862258072038418

[2, 7, 30, 127, 538, 2279, 9654, 40895, 173234, 733831, 3108558, 13168063, 55780810, 236291303, 1000946022, 4240075391, 17961247586, 76085065735, 322301510526, 1365291107839, 5783465941882, 24499154875367, 103780085443350, 439619496648767, 1862258072038418]

cp's OEIS Frontend

A097924 a(n) = 4*a(n-1) + a(n-2), n>=2, a(0) = 2, a(1) = 7.

Table of values

List of values