A215007 - cp's OEIS frontend

A215007 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3), a(0)=1, a(1)=3, a(2)=9.

n	a(n)
0	1
1	3
2	9
3	28
4	91
5	308
6	1078
7	3871
8	14161
9	52479
10	196196
11	737793
12	2785160
13	10540390
14	39955041
15	151615947
16	575723785
17	2187128524
18	8311078307
19	31587815308
20	120069510526
21	456434707519
22	1735184512425
23	6596692255391
24	25079305566420

[1, 3, 9, 28, 91, 308, 1078, 3871, 14161, 52479, 196196, 737793, 2785160, 10540390, 39955041, 151615947, 575723785, 2187128524, 8311078307, 31587815308, 120069510526, 456434707519, 1735184512425, 6596692255391, 25079305566420]

cp's OEIS Frontend

A215007 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3), a(0)=1, a(1)=3, a(2)=9.

Table of values

List of values

cp's OEIS Frontend

A215007 a(n) = 7*a(n-1) - 14*a(n-2) + 7*a(n-3), a(0)=1, a(1)=3, a(2)=9.

Table of values

List of values

A215007 a(n) = 7a(n-1) - 14a(n-2) + 7*a(n-3), a(0)=1, a(1)=3, a(2)=9.