A210578 - cp's OEIS frontend

A210578 Natural numbers that can be expressed as the sum of one or two nontrivial binomial coefficients, sorted, duplicates removed.

n	a(n)
1	6
2	10
3	12
4	15
5	16
6	20
7	21
8	25
9	26
10	27
11	28
12	30
13	31
14	34
15	35
16	36
17	38
18	40
19	41
20	42
21	43
22	45
23	46
24	48
25	49
26	50
27	51
28	55
29	56
30	57
31	60
32	61
33	62
34	63
35	64
36	65
37	66
38	70
39	71
40	72
41	73
42	75
43	76
44	77
45	78
46	80
47	81
48	83
49	84
50	85
51	86
52	87
53	88
54	90
55	91
56	92
57	93
58	94
59	97
60	98
61	99
62	100
63	101
64	102

[6, 10, 12, 15, 16, 20, 21, 25, 26, 27, 28, 30, 31, 34, 35, 36, 38, 40, 41, 42, 43, 45, 46, 48, 49, 50, 51, 55, 56, 57, 60, 61, 62, 63, 64, 65, 66, 70, 71, 72, 73, 75, 76, 77, 78, 80, 81, 83, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 97, 98, 99, 100, 101, 102]

cp's OEIS Frontend

A210578 Natural numbers that can be expressed as the sum of one or two nontrivial binomial coefficients, sorted, duplicates removed.

Table of values

List of values

n	a(n)
1	6
2	10
3	12
4	15
5	16
6	20
7	21
8	25
9	26
10	27
11	28
12	30
13	31
14	34
15	35
16	36
17	38
18	40
19	41
20	42
21	43
22	45
23	46
24	48
25	49
26	50
27	51
28	55
29	56
30	57
31	60
32	61
33	62
34	63
35	64
36	65
37	66
38	70
39	71
40	72
41	73
42	75
43	76
44	77
45	78
46	80
47	81
48	83
49	84
50	85
51	86
52	87
53	88
54	90
55	91
56	92
57	93
58	94
59	97
60	98
61	99
62	100
63	101
64	102

n	a(n)
1	6
2	10
3	12
4	15
5	16
6	20
7	21
8	25
9	26
10	27
11	28
12	30
13	31
14	34
15	35
16	36
17	38
18	40
19	41
20	42
21	43
22	45
23	46
24	48
25	49
26	50
27	51
28	55
29	56
30	57
31	60
32	61
33	62
34	63
35	64
36	65
37	66
38	70
39	71
40	72
41	73
42	75
43	76
44	77
45	78
46	80
47	81
48	83
49	84
50	85
51	86
52	87
53	88
54	90
55	91
56	92
57	93
58	94
59	97
60	98
61	99
62	100
63	101
64	102

n	a(n)
1	6
2	10
3	12
4	15
5	16
6	20
7	21
8	25
9	26
10	27
11	28
12	30
13	31
14	34
15	35
16	36
17	38
18	40
19	41
20	42
21	43
22	45
23	46
24	48
25	49
26	50
27	51
28	55
29	56
30	57
31	60
32	61
33	62
34	63
35	64
36	65
37	66
38	70
39	71
40	72
41	73
42	75
43	76
44	77
45	78
46	80
47	81
48	83
49	84
50	85
51	86
52	87
53	88
54	90
55	91
56	92
57	93
58	94
59	97
60	98
61	99
62	100
63	101
64	102