A157905 - cp's OEIS frontend

A157905 Triangle read by rows, T(n,k) = A000055(n-k) * (A157904 * 0^(n-k)).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	4
10	2
11	1
12	2
13	4
14	8
15	3
16	2
17	2
18	4
19	8
20	17
21	6
22	3
23	4
24	4
25	8
26	17
27	36
28	11
29	6
30	6
31	8
32	8
33	17
34	36
35	78
36	23
37	11
38	12
39	12
40	16
41	17
42	36
43	78
44	170
45	47
46	23
47	22
48	24
49	24
50	34
51	36
52	78
53	170
54	375
55	106
56	47
57	46
58	44
59	48
60	51
61	72
62	78
63	170
64	375
65	833

[1, 1, 1, 1, 1, 2, 1, 1, 2, 4, 2, 1, 2, 4, 8, 3, 2, 2, 4, 8, 17, 6, 3, 4, 4, 8, 17, 36, 11, 6, 6, 8, 8, 17, 36, 78, 23, 11, 12, 12, 16, 17, 36, 78, 170, 47, 23, 22, 24, 24, 34, 36, 78, 170, 375, 106, 47, 46, 44, 48, 51, 72, 78, 170, 375, 833]

cp's OEIS Frontend

A157905 Triangle read by rows, T(n,k) = A000055(n-k) * (A157904 * 0^(n-k)).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	4
10	2
11	1
12	2
13	4
14	8
15	3
16	2
17	2
18	4
19	8
20	17
21	6
22	3
23	4
24	4
25	8
26	17
27	36
28	11
29	6
30	6
31	8
32	8
33	17
34	36
35	78
36	23
37	11
38	12
39	12
40	16
41	17
42	36
43	78
44	170
45	47
46	23
47	22
48	24
49	24
50	34
51	36
52	78
53	170
54	375
55	106
56	47
57	46
58	44
59	48
60	51
61	72
62	78
63	170
64	375
65	833

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	4
10	2
11	1
12	2
13	4
14	8
15	3
16	2
17	2
18	4
19	8
20	17
21	6
22	3
23	4
24	4
25	8
26	17
27	36
28	11
29	6
30	6
31	8
32	8
33	17
34	36
35	78
36	23
37	11
38	12
39	12
40	16
41	17
42	36
43	78
44	170
45	47
46	23
47	22
48	24
49	24
50	34
51	36
52	78
53	170
54	375
55	106
56	47
57	46
58	44
59	48
60	51
61	72
62	78
63	170
64	375
65	833

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	2
9	4
10	2
11	1
12	2
13	4
14	8
15	3
16	2
17	2
18	4
19	8
20	17
21	6
22	3
23	4
24	4
25	8
26	17
27	36
28	11
29	6
30	6
31	8
32	8
33	17
34	36
35	78
36	23
37	11
38	12
39	12
40	16
41	17
42	36
43	78
44	170
45	47
46	23
47	22
48	24
49	24
50	34
51	36
52	78
53	170
54	375
55	106
56	47
57	46
58	44
59	48
60	51
61	72
62	78
63	170
64	375
65	833