A094894 - OEIS

A094894 as a simple table

n	a(n)
0	3
1	2
2	5
3	7
4	17
5	31
6	61
7	109
8	211
9	383
10	677
11	1217
12	2137
13	3733
14	6521
15	11279
16	19463
17	33347
18	56963
19	97159
20	165443
21	280549
22	474809
23	801611
24	1351841
25	2273989
26	3821689
27	6412541
28	10742339
29	17974841
30	30045019
31	50163697
32	83669419
33	139420003
34	232106309
35	386086573
36	641716373

[3,2,5,7,17,31,61,109,211,383,677,1217,2137,3733, 6521,11279,19463,33347,56963,97159,165443,280549, 474809,801611,1351841,2273989,3821689,6412541, 10742339,17974841,30045019,50163697,83669419, 139420003,232106309,386086573,641716373]