A240812 - cp's OEIS frontend

A240812 a(n) = length (or lifetime) of the meta-Fibonacci sequence f(1) = ... = f(n) = 1; f(k)=f(k-f(k-3))+f(k-f(k-n)) if that sequence is only defined for finitely many terms, or 0 if that sequence is infinite.

n	a(n)
3	13
4	10
5	11
6	13
7	44
8	31
9	49
10	38
11	80
12	58
13	69
14	61
15	57
16	60
17	63
18	78
19	81
20	85
21	81
22	84
23	87
24	96
25	99
26	109
27	105
28	108
29	111
30	120
31	123
32	126
33	129
34	132
35	135
36	138
37	141
38	144
39	153
40	156
41	159
42	162
43	165
44	168
45	177
46	180
47	183
48	186
49	189
50	192
51	201
52	204
53	207
54	210
55	213
56	216
57	225
58	228
59	231

[13, 10, 11, 13, 44, 31, 49, 38, 80, 58, 69, 61, 57, 60, 63, 78, 81, 85, 81, 84, 87, 96, 99, 109, 105, 108, 111, 120, 123, 126, 129, 132, 135, 138, 141, 144, 153, 156, 159, 162, 165, 168, 177, 180, 183, 186, 189, 192, 201, 204, 207, 210, 213, 216, 225, 228, 231]

cp's OEIS Frontend

A240812 a(n) = length (or lifetime) of the meta-Fibonacci sequence f(1) = ... = f(n) = 1; f(k)=f(k-f(k-3))+f(k-f(k-n)) if that sequence is only defined for finitely many terms, or 0 if that sequence is infinite.

Table of values

List of values

n	a(n)
3	13
4	10
5	11
6	13
7	44
8	31
9	49
10	38
11	80
12	58
13	69
14	61
15	57
16	60
17	63
18	78
19	81
20	85
21	81
22	84
23	87
24	96
25	99
26	109
27	105
28	108
29	111
30	120
31	123
32	126
33	129
34	132
35	135
36	138
37	141
38	144
39	153
40	156
41	159
42	162
43	165
44	168
45	177
46	180
47	183
48	186
49	189
50	192
51	201
52	204
53	207
54	210
55	213
56	216
57	225
58	228
59	231

n	a(n)
3	13
4	10
5	11
6	13
7	44
8	31
9	49
10	38
11	80
12	58
13	69
14	61
15	57
16	60
17	63
18	78
19	81
20	85
21	81
22	84
23	87
24	96
25	99
26	109
27	105
28	108
29	111
30	120
31	123
32	126
33	129
34	132
35	135
36	138
37	141
38	144
39	153
40	156
41	159
42	162
43	165
44	168
45	177
46	180
47	183
48	186
49	189
50	192
51	201
52	204
53	207
54	210
55	213
56	216
57	225
58	228
59	231

n	a(n)
3	13
4	10
5	11
6	13
7	44
8	31
9	49
10	38
11	80
12	58
13	69
14	61
15	57
16	60
17	63
18	78
19	81
20	85
21	81
22	84
23	87
24	96
25	99
26	109
27	105
28	108
29	111
30	120
31	123
32	126
33	129
34	132
35	135
36	138
37	141
38	144
39	153
40	156
41	159
42	162
43	165
44	168
45	177
46	180
47	183
48	186
49	189
50	192
51	201
52	204
53	207
54	210
55	213
56	216
57	225
58	228
59	231