A130843 - cp's OEIS frontend

A130843 Numbers k for which a number m < k exists such that digitsum(binomial(k,m)) = k.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	15
13	16
14	18
15	21
16	26
17	27
18	33
19	36
20	39
21	42
22	45
23	48
24	51
25	52
26	53
27	54
28	60
29	63
30	66
31	67
32	71
33	72
34	74
35	75
36	78
37	79
38	80
39	81
40	90
41	99
42	105
43	108
44	114
45	117
46	123
47	124
48	126
49	127
50	129
51	134
52	135
53	141
54	144
55	150
56	152
57	153
58	158
59	159
60	162
61	171
62	177
63	180
64	186

[1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 15, 16, 18, 21, 26, 27, 33, 36, 39, 42, 45, 48, 51, 52, 53, 54, 60, 63, 66, 67, 71, 72, 74, 75, 78, 79, 80, 81, 90, 99, 105, 108, 114, 117, 123, 124, 126, 127, 129, 134, 135, 141, 144, 150, 152, 153, 158, 159, 162, 171, 177, 180, 186]

cp's OEIS Frontend

A130843 Numbers k for which a number m < k exists such that digitsum(binomial(k,m)) = k.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	15
13	16
14	18
15	21
16	26
17	27
18	33
19	36
20	39
21	42
22	45
23	48
24	51
25	52
26	53
27	54
28	60
29	63
30	66
31	67
32	71
33	72
34	74
35	75
36	78
37	79
38	80
39	81
40	90
41	99
42	105
43	108
44	114
45	117
46	123
47	124
48	126
49	127
50	129
51	134
52	135
53	141
54	144
55	150
56	152
57	153
58	158
59	159
60	162
61	171
62	177
63	180
64	186

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	15
13	16
14	18
15	21
16	26
17	27
18	33
19	36
20	39
21	42
22	45
23	48
24	51
25	52
26	53
27	54
28	60
29	63
30	66
31	67
32	71
33	72
34	74
35	75
36	78
37	79
38	80
39	81
40	90
41	99
42	105
43	108
44	114
45	117
46	123
47	124
48	126
49	127
50	129
51	134
52	135
53	141
54	144
55	150
56	152
57	153
58	158
59	159
60	162
61	171
62	177
63	180
64	186

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	12
11	13
12	15
13	16
14	18
15	21
16	26
17	27
18	33
19	36
20	39
21	42
22	45
23	48
24	51
25	52
26	53
27	54
28	60
29	63
30	66
31	67
32	71
33	72
34	74
35	75
36	78
37	79
38	80
39	81
40	90
41	99
42	105
43	108
44	114
45	117
46	123
47	124
48	126
49	127
50	129
51	134
52	135
53	141
54	144
55	150
56	152
57	153
58	158
59	159
60	162
61	171
62	177
63	180
64	186