A158822 - cp's OEIS frontend

A158822 Triangle read by rows, matrix triple product A000012 * A145677 * A000012.

n	a(n)
0	1
1	3
2	1
3	6
4	3
5	2
6	10
7	6
8	5
9	3
10	15
11	10
12	9
13	7
14	4
15	21
16	15
17	14
18	12
19	9
20	5
21	28
22	21
23	20
24	18
25	15
26	11
27	6
28	36
29	28
30	27
31	25
32	22
33	18
34	13
35	7
36	45
37	36
38	35
39	33
40	30
41	26
42	21
43	15
44	8
45	55
46	45
47	44
48	42
49	39
50	35
51	30
52	24
53	17
54	9
55	66
56	55
57	54
58	52
59	49
60	45
61	40
62	34
63	27
64	19
65	10

[1, 3, 1, 6, 3, 2, 10, 6, 5, 3, 15, 10, 9, 7, 4, 21, 15, 14, 12, 9, 5, 28, 21, 20, 18, 15, 11, 6, 36, 28, 27, 25, 22, 18, 13, 7, 45, 36, 35, 33, 30, 26, 21, 15, 8, 55, 45, 44, 42, 39, 35, 30, 24, 17, 9, 66, 55, 54, 52, 49, 45, 40, 34, 27, 19, 10]

cp's OEIS Frontend

A158822 Triangle read by rows, matrix triple product A000012 * A145677 * A000012.

Table of values

List of values

n	a(n)
0	1
1	3
2	1
3	6
4	3
5	2
6	10
7	6
8	5
9	3
10	15
11	10
12	9
13	7
14	4
15	21
16	15
17	14
18	12
19	9
20	5
21	28
22	21
23	20
24	18
25	15
26	11
27	6
28	36
29	28
30	27
31	25
32	22
33	18
34	13
35	7
36	45
37	36
38	35
39	33
40	30
41	26
42	21
43	15
44	8
45	55
46	45
47	44
48	42
49	39
50	35
51	30
52	24
53	17
54	9
55	66
56	55
57	54
58	52
59	49
60	45
61	40
62	34
63	27
64	19
65	10

n	a(n)
0	1
1	3
2	1
3	6
4	3
5	2
6	10
7	6
8	5
9	3
10	15
11	10
12	9
13	7
14	4
15	21
16	15
17	14
18	12
19	9
20	5
21	28
22	21
23	20
24	18
25	15
26	11
27	6
28	36
29	28
30	27
31	25
32	22
33	18
34	13
35	7
36	45
37	36
38	35
39	33
40	30
41	26
42	21
43	15
44	8
45	55
46	45
47	44
48	42
49	39
50	35
51	30
52	24
53	17
54	9
55	66
56	55
57	54
58	52
59	49
60	45
61	40
62	34
63	27
64	19
65	10

n	a(n)
0	1
1	3
2	1
3	6
4	3
5	2
6	10
7	6
8	5
9	3
10	15
11	10
12	9
13	7
14	4
15	21
16	15
17	14
18	12
19	9
20	5
21	28
22	21
23	20
24	18
25	15
26	11
27	6
28	36
29	28
30	27
31	25
32	22
33	18
34	13
35	7
36	45
37	36
38	35
39	33
40	30
41	26
42	21
43	15
44	8
45	55
46	45
47	44
48	42
49	39
50	35
51	30
52	24
53	17
54	9
55	66
56	55
57	54
58	52
59	49
60	45
61	40
62	34
63	27
64	19
65	10