A332491 - cp's OEIS frontend

A332491 a(n) = 2*a(n-1) + a(n-3), where a(0) = 3, a(1) = 1, a(2) = 2.

n	a(n)
0	3
1	1
2	2
3	7
4	15
5	32
6	71
7	157
8	346
9	763
10	1683
11	3712
12	8187
13	18057
14	39826
15	87839
16	193735
17	427296
18	942431
19	2078597
20	4584490
21	10111411
22	22301419
23	49187328
24	108486067
25	239273553
26	527734434
27	1163954935
28	2567183423
29	5662101280
30	12488157495
31	27543498413

[3, 1, 2, 7, 15, 32, 71, 157, 346, 763, 1683, 3712, 8187, 18057, 39826, 87839, 193735, 427296, 942431, 2078597, 4584490, 10111411, 22301419, 49187328, 108486067, 239273553, 527734434, 1163954935, 2567183423, 5662101280, 12488157495, 27543498413]

cp's OEIS Frontend

A332491 a(n) = 2*a(n-1) + a(n-3), where a(0) = 3, a(1) = 1, a(2) = 2.

Table of values

List of values