A121405 - cp's OEIS frontend

A121405 Numbers that are not the sum of distinct pentagonal numbers (A000326).

n	a(n)
1	2
2	3
3	4
4	7
5	8
6	9
7	10
8	11
9	14
10	15
11	16
12	19
13	20
14	21
15	24
16	25
17	26
18	29
19	30
20	31
21	32
22	33
23	37
24	38
25	42
26	43
27	44
28	45
29	46
30	49
31	50
32	54
33	55
34	59
35	60
36	61
37	65
38	66
39	67
40	72
41	77
42	80
43	81
44	84
45	89
46	94
47	95
48	96
49	100
50	101
51	102
52	107
53	112
54	116
55	124
56	136
57	137
58	141
59	142
60	147
61	159

[2, 3, 4, 7, 8, 9, 10, 11, 14, 15, 16, 19, 20, 21, 24, 25, 26, 29, 30, 31, 32, 33, 37, 38, 42, 43, 44, 45, 46, 49, 50, 54, 55, 59, 60, 61, 65, 66, 67, 72, 77, 80, 81, 84, 89, 94, 95, 96, 100, 101, 102, 107, 112, 116, 124, 136, 137, 141, 142, 147, 159]

cp's OEIS Frontend

A121405 Numbers that are not the sum of distinct pentagonal numbers (A000326).

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	7
5	8
6	9
7	10
8	11
9	14
10	15
11	16
12	19
13	20
14	21
15	24
16	25
17	26
18	29
19	30
20	31
21	32
22	33
23	37
24	38
25	42
26	43
27	44
28	45
29	46
30	49
31	50
32	54
33	55
34	59
35	60
36	61
37	65
38	66
39	67
40	72
41	77
42	80
43	81
44	84
45	89
46	94
47	95
48	96
49	100
50	101
51	102
52	107
53	112
54	116
55	124
56	136
57	137
58	141
59	142
60	147
61	159

n	a(n)
1	2
2	3
3	4
4	7
5	8
6	9
7	10
8	11
9	14
10	15
11	16
12	19
13	20
14	21
15	24
16	25
17	26
18	29
19	30
20	31
21	32
22	33
23	37
24	38
25	42
26	43
27	44
28	45
29	46
30	49
31	50
32	54
33	55
34	59
35	60
36	61
37	65
38	66
39	67
40	72
41	77
42	80
43	81
44	84
45	89
46	94
47	95
48	96
49	100
50	101
51	102
52	107
53	112
54	116
55	124
56	136
57	137
58	141
59	142
60	147
61	159

n	a(n)
1	2
2	3
3	4
4	7
5	8
6	9
7	10
8	11
9	14
10	15
11	16
12	19
13	20
14	21
15	24
16	25
17	26
18	29
19	30
20	31
21	32
22	33
23	37
24	38
25	42
26	43
27	44
28	45
29	46
30	49
31	50
32	54
33	55
34	59
35	60
36	61
37	65
38	66
39	67
40	72
41	77
42	80
43	81
44	84
45	89
46	94
47	95
48	96
49	100
50	101
51	102
52	107
53	112
54	116
55	124
56	136
57	137
58	141
59	142
60	147
61	159