A171647 - cp's OEIS frontend

A171647 a(1) = 1; for n > 1, a(n) = 2a(n-1) if n is even, a(n) = ((n+1)/(n-1))a(n-1) if n is odd.

n	a(n)
1	1
2	2
3	4
4	8
5	12
6	24
7	32
8	64
9	80
10	160
11	192
12	384
13	448
14	896
15	1024
16	2048
17	2304
18	4608
19	5120
20	10240
21	11264
22	22528
23	24576
24	49152
25	53248
26	106496
27	114688
28	229376
29	245760
30	491520
31	524288
32	1048576
33	1114112
34	2228224
35	2359296
36	4718592
37	4980736
38	9961472

[1, 2, 4, 8, 12, 24, 32, 64, 80, 160, 192, 384, 448, 896, 1024, 2048, 2304, 4608, 5120, 10240, 11264, 22528, 24576, 49152, 53248, 106496, 114688, 229376, 245760, 491520, 524288, 1048576, 1114112, 2228224, 2359296, 4718592, 4980736, 9961472]

cp's OEIS Frontend

A171647 a(1) = 1; for n > 1, a(n) = 2a(n-1) if n is even, a(n) = ((n+1)/(n-1))a(n-1) if n is odd.

Table of values

List of values

cp's OEIS Frontend

A171647 a(1) = 1; for n > 1, a(n) = 2*a(n-1) if n is even, a(n) = ((n+1)/(n-1))*a(n-1) if n is odd.

Table of values

List of values

A171647 a(1) = 1; for n > 1, a(n) = 2a(n-1) if n is even, a(n) = ((n+1)/(n-1))a(n-1) if n is odd.