A105801 - cp's OEIS frontend

A105801 Fibonacci-Collatz sequence: a(1)=1, a(2)=2; for n > 2, let fib = a(n-1) + a(n-2); if fib is odd then a(n) = 3*fib + 1 else a(n) = fib/2.

n	a(n)
1	1
2	2
3	10
4	6
5	8
6	7
7	46
8	160
9	103
10	790
11	2680
12	1735
13	13246
14	44944
15	29095
16	222118
17	753640
18	487879
19	3724558
20	12637312
21	8180935
22	62454742
23	211907032
24	137180887
25	1047263758
26	3553333936
27	2300298847
28	17560898350
29	59583591592
30	38572244971

[1, 2, 10, 6, 8, 7, 46, 160, 103, 790, 2680, 1735, 13246, 44944, 29095, 222118, 753640, 487879, 3724558, 12637312, 8180935, 62454742, 211907032, 137180887, 1047263758, 3553333936, 2300298847, 17560898350, 59583591592, 38572244971]

cp's OEIS Frontend

A105801 Fibonacci-Collatz sequence: a(1)=1, a(2)=2; for n > 2, let fib = a(n-1) + a(n-2); if fib is odd then a(n) = 3*fib + 1 else a(n) = fib/2.

Table of values

List of values