A121861 - cp's OEIS frontend

A121861 Least previously nonoccurring positive integer such that partial sum + 1 is prime.

n	a(n)
1	1
2	3
3	2
4	4
5	6
6	12
7	8
8	10
9	14
10	18
11	22
12	26
13	24
14	16
15	30
16	32
17	28
18	20
19	34
20	36
21	42
22	44
23	46
24	62
25	52
26	38
27	60
28	48
29	58
30	56
31	54
32	40
33	50
34	64
35	68
36	72
37	76
38	84
39	66
40	96
41	74
42	70
43	80
44	100
45	86
46	78
47	88
48	104
49	90
50	106
51	122
52	112
53	98
54	102
55	94
56	92
57	118
58	114
59	108
60	110
61	124
62	116
63	138
64	82
65	120
66	128
67	150

[1, 3, 2, 4, 6, 12, 8, 10, 14, 18, 22, 26, 24, 16, 30, 32, 28, 20, 34, 36, 42, 44, 46, 62, 52, 38, 60, 48, 58, 56, 54, 40, 50, 64, 68, 72, 76, 84, 66, 96, 74, 70, 80, 100, 86, 78, 88, 104, 90, 106, 122, 112, 98, 102, 94, 92, 118, 114, 108, 110, 124, 116, 138, 82, 120, 128, 150]

cp's OEIS Frontend

A121861 Least previously nonoccurring positive integer such that partial sum + 1 is prime.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	4
5	6
6	12
7	8
8	10
9	14
10	18
11	22
12	26
13	24
14	16
15	30
16	32
17	28
18	20
19	34
20	36
21	42
22	44
23	46
24	62
25	52
26	38
27	60
28	48
29	58
30	56
31	54
32	40
33	50
34	64
35	68
36	72
37	76
38	84
39	66
40	96
41	74
42	70
43	80
44	100
45	86
46	78
47	88
48	104
49	90
50	106
51	122
52	112
53	98
54	102
55	94
56	92
57	118
58	114
59	108
60	110
61	124
62	116
63	138
64	82
65	120
66	128
67	150

n	a(n)
1	1
2	3
3	2
4	4
5	6
6	12
7	8
8	10
9	14
10	18
11	22
12	26
13	24
14	16
15	30
16	32
17	28
18	20
19	34
20	36
21	42
22	44
23	46
24	62
25	52
26	38
27	60
28	48
29	58
30	56
31	54
32	40
33	50
34	64
35	68
36	72
37	76
38	84
39	66
40	96
41	74
42	70
43	80
44	100
45	86
46	78
47	88
48	104
49	90
50	106
51	122
52	112
53	98
54	102
55	94
56	92
57	118
58	114
59	108
60	110
61	124
62	116
63	138
64	82
65	120
66	128
67	150

n	a(n)
1	1
2	3
3	2
4	4
5	6
6	12
7	8
8	10
9	14
10	18
11	22
12	26
13	24
14	16
15	30
16	32
17	28
18	20
19	34
20	36
21	42
22	44
23	46
24	62
25	52
26	38
27	60
28	48
29	58
30	56
31	54
32	40
33	50
34	64
35	68
36	72
37	76
38	84
39	66
40	96
41	74
42	70
43	80
44	100
45	86
46	78
47	88
48	104
49	90
50	106
51	122
52	112
53	98
54	102
55	94
56	92
57	118
58	114
59	108
60	110
61	124
62	116
63	138
64	82
65	120
66	128
67	150