A200310 - cp's OEIS frontend

A200310 a(n) = n-1 for n <= 4, otherwise if n is even then a(n) = a(n-5)+2^(n/2), and if n is odd then a(n) = a(n-1)+2^((n-3)/2).

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	8
7	12
8	18
9	26
10	37
11	53
12	76
13	108
14	154
15	218
16	309
17	437
18	620
19	876
20	1242
21	1754
22	2485
23	3509
24	4972
25	7020
26	9946
27	14042
28	19893
29	28085
30	39788
31	56172
32	79578
33	112346
34	159157
35	224693
36	318316
37	449388
38	636634
39	898778
40	1273269
41	1797557
42	2546540
43	3595116
44	5093082
45	7190234
46	10186165
47	14380469

[0, 1, 2, 3, 5, 8, 12, 18, 26, 37, 53, 76, 108, 154, 218, 309, 437, 620, 876, 1242, 1754, 2485, 3509, 4972, 7020, 9946, 14042, 19893, 28085, 39788, 56172, 79578, 112346, 159157, 224693, 318316, 449388, 636634, 898778, 1273269, 1797557, 2546540, 3595116, 5093082, 7190234, 10186165, 14380469]

cp's OEIS Frontend

A200310 a(n) = n-1 for n <= 4, otherwise if n is even then a(n) = a(n-5)+2^(n/2), and if n is odd then a(n) = a(n-1)+2^((n-3)/2).

Table of values

List of values