A128505 - cp's OEIS frontend

A128505 Irregular triangular array a(n,m) for third (k=3) convolution of Chebyshev's S(n,x) = U(n,x/2) polynomials, read by rows (n >=0, 0 <= m <= floor(n/2)).

n	a(n)
0	1
1	4
2	10
3	-4
4	20
5	-20
6	35
7	-60
8	10
9	56
10	-140
11	60
12	84
13	-280
14	210
15	-20
16	120
17	-504
18	560
19	-140
20	165
21	-840
22	1260
23	-560
24	35
25	220
26	-1320
27	2520
28	-1680
29	280
30	286
31	-1980
32	4620
33	-4200
34	1260
35	-56
36	364
37	-2860
38	7920
39	-9240
40	4200
41	-504
42	455
43	-4004
44	12870
45	-18480
46	11550
47	-2520
48	84
49	560
50	-5460
51	20020
52	-34320

[1, 4, 10, -4, 20, -20, 35, -60, 10, 56, -140, 60, 84, -280, 210, -20, 120, -504, 560, -140, 165, -840, 1260, -560, 35, 220, -1320, 2520, -1680, 280, 286, -1980, 4620, -4200, 1260, -56, 364, -2860, 7920, -9240, 4200, -504, 455, -4004, 12870, -18480, 11550, -2520, 84, 560, -5460, 20020, -34320]

cp's OEIS Frontend

A128505 Irregular triangular array a(n,m) for third (k=3) convolution of Chebyshev's S(n,x) = U(n,x/2) polynomials, read by rows (n >=0, 0 <= m <= floor(n/2)).

Table of values

List of values