A143037 - cp's OEIS frontend

A143037 Triangle read by rows, A000012 * A127773 * A000012. A000012 is an infinite lower triangular matrix with all 1's, A127773 = (1; 0,3; 0,0,6; 0,0,0,10; ...).

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	10
8	16
9	19
10	20
11	15
12	25
13	31
14	34
15	35
16	21
17	36
18	46
19	52
20	55
21	56
22	28
23	49
24	64
25	74
26	80
27	83
28	84
29	36
30	64
31	85
32	100
33	110
34	116
35	119
36	120
37	45
38	81
39	109
40	130
41	145
42	155
43	161
44	164
45	165
46	55
47	100
48	136
49	164
50	185
51	200
52	210
53	216
54	219
55	220

[1, 3, 4, 6, 9, 10, 10, 16, 19, 20, 15, 25, 31, 34, 35, 21, 36, 46, 52, 55, 56, 28, 49, 64, 74, 80, 83, 84, 36, 64, 85, 100, 110, 116, 119, 120, 45, 81, 109, 130, 145, 155, 161, 164, 165, 55, 100, 136, 164, 185, 200, 210, 216, 219, 220]

cp's OEIS Frontend

A143037 Triangle read by rows, A000012 * A127773 * A000012. A000012 is an infinite lower triangular matrix with all 1's, A127773 = (1; 0,3; 0,0,6; 0,0,0,10; ...).

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	10
8	16
9	19
10	20
11	15
12	25
13	31
14	34
15	35
16	21
17	36
18	46
19	52
20	55
21	56
22	28
23	49
24	64
25	74
26	80
27	83
28	84
29	36
30	64
31	85
32	100
33	110
34	116
35	119
36	120
37	45
38	81
39	109
40	130
41	145
42	155
43	161
44	164
45	165
46	55
47	100
48	136
49	164
50	185
51	200
52	210
53	216
54	219
55	220

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	10
8	16
9	19
10	20
11	15
12	25
13	31
14	34
15	35
16	21
17	36
18	46
19	52
20	55
21	56
22	28
23	49
24	64
25	74
26	80
27	83
28	84
29	36
30	64
31	85
32	100
33	110
34	116
35	119
36	120
37	45
38	81
39	109
40	130
41	145
42	155
43	161
44	164
45	165
46	55
47	100
48	136
49	164
50	185
51	200
52	210
53	216
54	219
55	220

n	a(n)
1	1
2	3
3	4
4	6
5	9
6	10
7	10
8	16
9	19
10	20
11	15
12	25
13	31
14	34
15	35
16	21
17	36
18	46
19	52
20	55
21	56
22	28
23	49
24	64
25	74
26	80
27	83
28	84
29	36
30	64
31	85
32	100
33	110
34	116
35	119
36	120
37	45
38	81
39	109
40	130
41	145
42	155
43	161
44	164
45	165
46	55
47	100
48	136
49	164
50	185
51	200
52	210
53	216
54	219
55	220