A005673 - cp's OEIS frontend

A005673 a(n) = F(n+2) - 2^[ (n+1)/2 ] - 2^[ n/2 ] + 1.

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	2
6	6
7	11
8	24
9	42
10	81
11	138
12	250
13	419
14	732
15	1214
16	2073
17	3414
18	5742
19	9411
20	15664
21	25586
22	42273
23	68882
24	113202
25	184131
26	301428
27	489654
28	799273
29	1297118
30	2112774
31	3426275
32	5571816
33	9030858
34	14668209
35	23764602
36	38563882
37	62459555
38	101285580
39	164007278

[0, 0, 0, 0, 1, 2, 6, 11, 24, 42, 81, 138, 250, 419, 732, 1214, 2073, 3414, 5742, 9411, 15664, 25586, 42273, 68882, 113202, 184131, 301428, 489654, 799273, 1297118, 2112774, 3426275, 5571816, 9030858, 14668209, 23764602, 38563882, 62459555, 101285580, 164007278]

cp's OEIS Frontend

A005673 a(n) = F(n+2) - 2^[ (n+1)/2 ] - 2^[ n/2 ] + 1.

Table of values

List of values