A379757 - cp's OEIS frontend

A379757 a(n) = a(n-1) + 1 with two exceptions: if a(n-1) is prime, a(n) = a(n-2) + a(n-1), or if a(n-1) is a power, a(n) = a(n-1) / (root factor), with initial three terms are 0, 1, 2.

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	8
7	4
8	2
9	6
10	7
11	13
12	20
13	21
14	22
15	23
16	45
17	46
18	47
19	93
20	94
21	95
22	96
23	97
24	193
25	290
26	291
27	292
28	293
29	585
30	586
31	587
32	1173
33	1174
34	1175
35	1176
36	1177
37	1178
38	1179
39	1180
40	1181
41	2361
42	2362
43	2363
44	2364
45	2365
46	2366
47	2367
48	2368
49	2369
50	2370
51	2371
52	4741
53	4742
54	4743

[0, 1, 2, 3, 5, 8, 4, 2, 6, 7, 13, 20, 21, 22, 23, 45, 46, 47, 93, 94, 95, 96, 97, 193, 290, 291, 292, 293, 585, 586, 587, 1173, 1174, 1175, 1176, 1177, 1178, 1179, 1180, 1181, 2361, 2362, 2363, 2364, 2365, 2366, 2367, 2368, 2369, 2370, 2371, 4741, 4742, 4743]

cp's OEIS Frontend

A379757 a(n) = a(n-1) + 1 with two exceptions: if a(n-1) is prime, a(n) = a(n-2) + a(n-1), or if a(n-1) is a power, a(n) = a(n-1) / (root factor), with initial three terms are 0, 1, 2.

Table of values

List of values