A228471 - cp's OEIS frontend

A228471 a(n) = 6*a(n-2) + a(n-4), where a(0) = 3, a(1) = 5, a(2) = 19, a(3) = 31.

n	a(n)
0	3
1	5
2	19
3	31
4	117
5	191
6	721
7	1177
8	4443
9	7253
10	27379
11	44695
12	168717
13	275423
14	1039681
15	1697233
16	6406803
17	10458821
18	39480499
19	64450159
20	243289797
21	397159775
22	1499219281
23	2447408809
24	9238605483
25	15081612629
26	56930852179
27	92937084583
28	350823718557
29	572704120127

[3, 5, 19, 31, 117, 191, 721, 1177, 4443, 7253, 27379, 44695, 168717, 275423, 1039681, 1697233, 6406803, 10458821, 39480499, 64450159, 243289797, 397159775, 1499219281, 2447408809, 9238605483, 15081612629, 56930852179, 92937084583, 350823718557, 572704120127]

cp's OEIS Frontend

A228471 a(n) = 6*a(n-2) + a(n-4), where a(0) = 3, a(1) = 5, a(2) = 19, a(3) = 31.

Table of values

List of values