A301475 - cp's OEIS frontend

A301475 Triangular array of polynomials related to the Motzkin triangle and to rooted polyominoes, coefficients in ascending order, read by rows, for 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	1
10	4
11	5
12	3
13	1
14	5
15	3
16	1
17	3
18	1
19	1
20	9
21	12
22	9
23	4
24	1
25	12
26	9
27	4
28	1
29	9
30	4
31	1
32	4
33	1
34	1
35	21
36	30
37	25
38	14
39	5
40	1
41	30
42	25
43	14
44	5
45	1
46	25
47	14
48	5
49	1
50	14
51	5
52	1
53	5
54	1
55	1
56	51
57	76
58	69
59	44
60	20
61	6
62	1
63	76
64	69
65	44
66	20
67	6
68	1
69	69
70	44
71	20
72	6
73	1
74	44
75	20
76	6
77	1
78	20
79	6
80	1
81	6
82	1
83	1

[1, 1, 1, 1, 2, 2, 1, 2, 1, 1, 4, 5, 3, 1, 5, 3, 1, 3, 1, 1, 9, 12, 9, 4, 1, 12, 9, 4, 1, 9, 4, 1, 4, 1, 1, 21, 30, 25, 14, 5, 1, 30, 25, 14, 5, 1, 25, 14, 5, 1, 14, 5, 1, 5, 1, 1, 51, 76, 69, 44, 20, 6, 1, 76, 69, 44, 20, 6, 1, 69, 44, 20, 6, 1, 44, 20, 6, 1, 20, 6, 1, 6, 1, 1]

cp's OEIS Frontend

A301475 Triangular array of polynomials related to the Motzkin triangle and to rooted polyominoes, coefficients in ascending order, read by rows, for 0 <= k <= n.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	1
10	4
11	5
12	3
13	1
14	5
15	3
16	1
17	3
18	1
19	1
20	9
21	12
22	9
23	4
24	1
25	12
26	9
27	4
28	1
29	9
30	4
31	1
32	4
33	1
34	1
35	21
36	30
37	25
38	14
39	5
40	1
41	30
42	25
43	14
44	5
45	1
46	25
47	14
48	5
49	1
50	14
51	5
52	1
53	5
54	1
55	1
56	51
57	76
58	69
59	44
60	20
61	6
62	1
63	76
64	69
65	44
66	20
67	6
68	1
69	69
70	44
71	20
72	6
73	1
74	44
75	20
76	6
77	1
78	20
79	6
80	1
81	6
82	1
83	1

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	1
10	4
11	5
12	3
13	1
14	5
15	3
16	1
17	3
18	1
19	1
20	9
21	12
22	9
23	4
24	1
25	12
26	9
27	4
28	1
29	9
30	4
31	1
32	4
33	1
34	1
35	21
36	30
37	25
38	14
39	5
40	1
41	30
42	25
43	14
44	5
45	1
46	25
47	14
48	5
49	1
50	14
51	5
52	1
53	5
54	1
55	1
56	51
57	76
58	69
59	44
60	20
61	6
62	1
63	76
64	69
65	44
66	20
67	6
68	1
69	69
70	44
71	20
72	6
73	1
74	44
75	20
76	6
77	1
78	20
79	6
80	1
81	6
82	1
83	1

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	2
6	1
7	2
8	1
9	1
10	4
11	5
12	3
13	1
14	5
15	3
16	1
17	3
18	1
19	1
20	9
21	12
22	9
23	4
24	1
25	12
26	9
27	4
28	1
29	9
30	4
31	1
32	4
33	1
34	1
35	21
36	30
37	25
38	14
39	5
40	1
41	30
42	25
43	14
44	5
45	1
46	25
47	14
48	5
49	1
50	14
51	5
52	1
53	5
54	1
55	1
56	51
57	76
58	69
59	44
60	20
61	6
62	1
63	76
64	69
65	44
66	20
67	6
68	1
69	69
70	44
71	20
72	6
73	1
74	44
75	20
76	6
77	1
78	20
79	6
80	1
81	6
82	1
83	1