A075118 - cp's OEIS frontend

A075118 Variant on Lucas numbers: a(n) = a(n-1) + 3*a(n-2) with a(0)=2 and a(1)=1.

n	a(n)
0	2
1	1
2	7
3	10
4	31
5	61
6	154
7	337
8	799
9	1810
10	4207
11	9637
12	22258
13	51169
14	117943
15	271450
16	625279
17	1439629
18	3315466
19	7634353
20	17580751
21	40483810
22	93226063
23	214677493
24	494355682
25	1138388161
26	2621455207
27	6036619690
28	13900985311
29	32010844381
30	73713800314
31	169746333457

[2, 1, 7, 10, 31, 61, 154, 337, 799, 1810, 4207, 9637, 22258, 51169, 117943, 271450, 625279, 1439629, 3315466, 7634353, 17580751, 40483810, 93226063, 214677493, 494355682, 1138388161, 2621455207, 6036619690, 13900985311, 32010844381, 73713800314, 169746333457]

cp's OEIS Frontend

A075118 Variant on Lucas numbers: a(n) = a(n-1) + 3*a(n-2) with a(0)=2 and a(1)=1.

Table of values

List of values