A144021 - cp's OEIS frontend

A144021 Eigentriangle by rows, T(n,k) = A000034(n-k+1)*A105476(k-1).

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	2
8	1
9	6
10	6
11	1
12	2
13	3
14	12
15	15
16	2
17	1
18	6
19	6
20	30
21	33
22	1
23	2
24	3
25	12
26	15
27	66
28	78
29	2
30	1
31	6
32	6
33	30
34	33
35	156
36	177
37	1
38	2
39	3
40	12
41	15
42	66
43	78
44	354
45	411
46	2
47	1
48	6
49	6
50	30
51	33
52	156
53	177
54	822
55	942

[1, 2, 1, 1, 2, 3, 2, 1, 6, 6, 1, 2, 3, 12, 15, 2, 1, 6, 6, 30, 33, 1, 2, 3, 12, 15, 66, 78, 2, 1, 6, 6, 30, 33, 156, 177, 1, 2, 3, 12, 15, 66, 78, 354, 411, 2, 1, 6, 6, 30, 33, 156, 177, 822, 942]

cp's OEIS Frontend

A144021 Eigentriangle by rows, T(n,k) = A000034(n-k+1)*A105476(k-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	2
8	1
9	6
10	6
11	1
12	2
13	3
14	12
15	15
16	2
17	1
18	6
19	6
20	30
21	33
22	1
23	2
24	3
25	12
26	15
27	66
28	78
29	2
30	1
31	6
32	6
33	30
34	33
35	156
36	177
37	1
38	2
39	3
40	12
41	15
42	66
43	78
44	354
45	411
46	2
47	1
48	6
49	6
50	30
51	33
52	156
53	177
54	822
55	942

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	2
8	1
9	6
10	6
11	1
12	2
13	3
14	12
15	15
16	2
17	1
18	6
19	6
20	30
21	33
22	1
23	2
24	3
25	12
26	15
27	66
28	78
29	2
30	1
31	6
32	6
33	30
34	33
35	156
36	177
37	1
38	2
39	3
40	12
41	15
42	66
43	78
44	354
45	411
46	2
47	1
48	6
49	6
50	30
51	33
52	156
53	177
54	822
55	942

n	a(n)
1	1
2	2
3	1
4	1
5	2
6	3
7	2
8	1
9	6
10	6
11	1
12	2
13	3
14	12
15	15
16	2
17	1
18	6
19	6
20	30
21	33
22	1
23	2
24	3
25	12
26	15
27	66
28	78
29	2
30	1
31	6
32	6
33	30
34	33
35	156
36	177
37	1
38	2
39	3
40	12
41	15
42	66
43	78
44	354
45	411
46	2
47	1
48	6
49	6
50	30
51	33
52	156
53	177
54	822
55	942