A301365 - cp's OEIS frontend

A301365 Regular triangle where T(n,k) is the number of strict trees of weight n with k leaves.

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	0
11	1
12	2
13	2
14	1
15	0
16	1
17	2
18	4
19	4
20	1
21	0
22	1
23	3
24	7
25	9
26	7
27	1
28	0
29	1
30	3
31	10
32	19
33	20
34	11
35	1
36	0
37	1
38	4
39	15
40	35
41	51
42	43
43	16
44	1
45	0
46	1
47	4
48	18
49	55
50	104
51	123
52	84
53	22
54	1
55	0
56	1
57	5
58	25
59	84
60	196
61	298
62	284
63	153
64	29
65	1
66	0
67	1
68	5
69	30
70	120
71	331
72	624
73	783
74	614
75	260
76	37

[1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 2, 2, 1, 0, 1, 2, 4, 4, 1, 0, 1, 3, 7, 9, 7, 1, 0, 1, 3, 10, 19, 20, 11, 1, 0, 1, 4, 15, 35, 51, 43, 16, 1, 0, 1, 4, 18, 55, 104, 123, 84, 22, 1, 0, 1, 5, 25, 84, 196, 298, 284, 153, 29, 1, 0, 1, 5, 30, 120, 331, 624, 783, 614, 260, 37]

cp's OEIS Frontend

A301365 Regular triangle where T(n,k) is the number of strict trees of weight n with k leaves.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	0
11	1
12	2
13	2
14	1
15	0
16	1
17	2
18	4
19	4
20	1
21	0
22	1
23	3
24	7
25	9
26	7
27	1
28	0
29	1
30	3
31	10
32	19
33	20
34	11
35	1
36	0
37	1
38	4
39	15
40	35
41	51
42	43
43	16
44	1
45	0
46	1
47	4
48	18
49	55
50	104
51	123
52	84
53	22
54	1
55	0
56	1
57	5
58	25
59	84
60	196
61	298
62	284
63	153
64	29
65	1
66	0
67	1
68	5
69	30
70	120
71	331
72	624
73	783
74	614
75	260
76	37

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	0
11	1
12	2
13	2
14	1
15	0
16	1
17	2
18	4
19	4
20	1
21	0
22	1
23	3
24	7
25	9
26	7
27	1
28	0
29	1
30	3
31	10
32	19
33	20
34	11
35	1
36	0
37	1
38	4
39	15
40	35
41	51
42	43
43	16
44	1
45	0
46	1
47	4
48	18
49	55
50	104
51	123
52	84
53	22
54	1
55	0
56	1
57	5
58	25
59	84
60	196
61	298
62	284
63	153
64	29
65	1
66	0
67	1
68	5
69	30
70	120
71	331
72	624
73	783
74	614
75	260
76	37

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	0
11	1
12	2
13	2
14	1
15	0
16	1
17	2
18	4
19	4
20	1
21	0
22	1
23	3
24	7
25	9
26	7
27	1
28	0
29	1
30	3
31	10
32	19
33	20
34	11
35	1
36	0
37	1
38	4
39	15
40	35
41	51
42	43
43	16
44	1
45	0
46	1
47	4
48	18
49	55
50	104
51	123
52	84
53	22
54	1
55	0
56	1
57	5
58	25
59	84
60	196
61	298
62	284
63	153
64	29
65	1
66	0
67	1
68	5
69	30
70	120
71	331
72	624
73	783
74	614
75	260
76	37