A137255 - cp's OEIS frontend

A137255 a(n) = 2a(n-1) + 4a(n-2) - 6a(n-3) - 3a(n-4) for n > 3, with a(0)=1, a(1)=2, a(2)=4, a(3)=8.

n	a(n)
0	1
1	2
2	4
3	8
4	17
5	36
6	80
7	178
8	409
9	942
10	2212
11	5204
12	12377
13	29472
14	70592
15	169198
16	406801
17	978426
18	2357092
19	5679488
20	13696385
21	33032892
22	79703120
23	192321034
24	464168041
25	1120302822
26	2704242244
27	6527724428
28	15758096777
29	38040729336
30	91834772480

[1, 2, 4, 8, 17, 36, 80, 178, 409, 942, 2212, 5204, 12377, 29472, 70592, 169198, 406801, 978426, 2357092, 5679488, 13696385, 33032892, 79703120, 192321034, 464168041, 1120302822, 2704242244, 6527724428, 15758096777, 38040729336, 91834772480]

cp's OEIS Frontend

A137255 a(n) = 2a(n-1) + 4a(n-2) - 6a(n-3) - 3a(n-4) for n > 3, with a(0)=1, a(1)=2, a(2)=4, a(3)=8.

Table of values

List of values

cp's OEIS Frontend

A137255 a(n) = 2*a(n-1) + 4*a(n-2) - 6*a(n-3) - 3*a(n-4) for n > 3, with a(0)=1, a(1)=2, a(2)=4, a(3)=8.

Table of values

List of values

A137255 a(n) = 2a(n-1) + 4a(n-2) - 6a(n-3) - 3a(n-4) for n > 3, with a(0)=1, a(1)=2, a(2)=4, a(3)=8.