A289410 - cp's OEIS frontend

A289410 Irregular triangular array T(m,k) with m (row) >= 1 and k (column) >= 1 read by rows: number of m-digit numbers whose digit sum is k.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	8
18	9
19	9
20	8
21	7
22	6
23	5
24	4
25	3
26	2
27	1
28	1
29	3
30	6
31	10
32	15
33	21
34	28
35	36
36	45
37	54
38	61
39	66
40	69
41	70
42	69
43	66
44	61
45	54
46	45
47	36
48	28
49	21
50	15
51	10
52	6
53	3
54	1
55	1
56	4
57	10
58	20
59	35
60	56
61	84
62	120
63	165
64	219
65	279
66	342
67	405
68	465
69	519
70	564
71	597
72	615
73	615
74	597
75	564
76	519
77	465
78	405
79	342
80	279
81	219
82	165
83	120
84	84

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 8, 7, 6, 5, 4, 3, 2, 1, 1, 3, 6, 10, 15, 21, 28, 36, 45, 54, 61, 66, 69, 70, 69, 66, 61, 54, 45, 36, 28, 21, 15, 10, 6, 3, 1, 1, 4, 10, 20, 35, 56, 84, 120, 165, 219, 279, 342, 405, 465, 519, 564, 597, 615, 615, 597, 564, 519, 465, 405, 342, 279, 219, 165, 120, 84]

cp's OEIS Frontend

A289410 Irregular triangular array T(m,k) with m (row) >= 1 and k (column) >= 1 read by rows: number of m-digit numbers whose digit sum is k.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	8
18	9
19	9
20	8
21	7
22	6
23	5
24	4
25	3
26	2
27	1
28	1
29	3
30	6
31	10
32	15
33	21
34	28
35	36
36	45
37	54
38	61
39	66
40	69
41	70
42	69
43	66
44	61
45	54
46	45
47	36
48	28
49	21
50	15
51	10
52	6
53	3
54	1
55	1
56	4
57	10
58	20
59	35
60	56
61	84
62	120
63	165
64	219
65	279
66	342
67	405
68	465
69	519
70	564
71	597
72	615
73	615
74	597
75	564
76	519
77	465
78	405
79	342
80	279
81	219
82	165
83	120
84	84

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	8
18	9
19	9
20	8
21	7
22	6
23	5
24	4
25	3
26	2
27	1
28	1
29	3
30	6
31	10
32	15
33	21
34	28
35	36
36	45
37	54
38	61
39	66
40	69
41	70
42	69
43	66
44	61
45	54
46	45
47	36
48	28
49	21
50	15
51	10
52	6
53	3
54	1
55	1
56	4
57	10
58	20
59	35
60	56
61	84
62	120
63	165
64	219
65	279
66	342
67	405
68	465
69	519
70	564
71	597
72	615
73	615
74	597
75	564
76	519
77	465
78	405
79	342
80	279
81	219
82	165
83	120
84	84

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	2
12	3
13	4
14	5
15	6
16	7
17	8
18	9
19	9
20	8
21	7
22	6
23	5
24	4
25	3
26	2
27	1
28	1
29	3
30	6
31	10
32	15
33	21
34	28
35	36
36	45
37	54
38	61
39	66
40	69
41	70
42	69
43	66
44	61
45	54
46	45
47	36
48	28
49	21
50	15
51	10
52	6
53	3
54	1
55	1
56	4
57	10
58	20
59	35
60	56
61	84
62	120
63	165
64	219
65	279
66	342
67	405
68	465
69	519
70	564
71	597
72	615
73	615
74	597
75	564
76	519
77	465
78	405
79	342
80	279
81	219
82	165
83	120
84	84