A173588 - cp's OEIS frontend

A173588 T(n,k) = (k^n)*U(n, (1/k + k)/2), where U(n,x) is the n-th Chebyshev polynomial of the second kind, square array read by antidiagonals upward (n >= 0, k >= 1).

n	a(n)
0	1
1	2
2	1
3	3
4	5
5	1
6	4
7	21
8	10
9	1
10	5
11	85
12	91
13	17
14	1
15	6
16	341
17	820
18	273
19	26
20	1
21	7
22	1365
23	7381
24	4369
25	651
26	37
27	1
28	8
29	5461
30	66430
31	69905
32	16276
33	1333
34	50
35	1
36	9
37	21845
38	597871
39	1118481
40	406901
41	47989
42	2451
43	65
44	1
45	10
46	87381
47	5380840
48	17895697
49	10172526
50	1727605
51	120100
52	4161
53	82
54	1

[1, 2, 1, 3, 5, 1, 4, 21, 10, 1, 5, 85, 91, 17, 1, 6, 341, 820, 273, 26, 1, 7, 1365, 7381, 4369, 651, 37, 1, 8, 5461, 66430, 69905, 16276, 1333, 50, 1, 9, 21845, 597871, 1118481, 406901, 47989, 2451, 65, 1, 10, 87381, 5380840, 17895697, 10172526, 1727605, 120100, 4161, 82, 1]

cp's OEIS Frontend

A173588 T(n,k) = (k^n)*U(n, (1/k + k)/2), where U(n,x) is the n-th Chebyshev polynomial of the second kind, square array read by antidiagonals upward (n >= 0, k >= 1).

Table of values

List of values