A327809 - cp's OEIS frontend

A327809 Regular triangle, coefficients of the polynomial P(n)(x) = (-1)^(n+1)(2n+1)binomial(2n, n)Sum_{i=0..n} x^ibinomial(n, i)/(n+i+1).

n	a(n)
0	-1
1	3
2	2
3	-10
4	-15
5	-6
6	35
7	84
8	70
9	20
10	-126
11	-420
12	-540
13	-315
14	-70
15	462
16	1980
17	3465
18	3080
19	1386
20	252
21	-1716
22	-9009
23	-20020
24	-24024
25	-16380
26	-6006
27	-924
28	6435
29	40040
30	108108
31	163800
32	150150
33	83160
34	25740
35	3432
36	-24310
37	-175032
38	-556920
39	-1021020
40	-1178100
41	-875160
42	-408408
43	-109395
44	-12870

[-1, 3, 2, -10, -15, -6, 35, 84, 70, 20, -126, -420, -540, -315, -70, 462, 1980, 3465, 3080, 1386, 252, -1716, -9009, -20020, -24024, -16380, -6006, -924, 6435, 40040, 108108, 163800, 150150, 83160, 25740, 3432, -24310, -175032, -556920, -1021020, -1178100, -875160, -408408, -109395, -12870]

cp's OEIS Frontend

A327809 Regular triangle, coefficients of the polynomial P(n)(x) = (-1)^(n+1)(2n+1)binomial(2n, n)Sum_{i=0..n} x^ibinomial(n, i)/(n+i+1).

Table of values

List of values

cp's OEIS Frontend

A327809 Regular triangle, coefficients of the polynomial P(n)(x) = (-1)^(n+1)*(2*n+1)*binomial(2*n, n)*Sum_{i=0..n} x^i*binomial(n, i)/(n+i+1).

Table of values

List of values

A327809 Regular triangle, coefficients of the polynomial P(n)(x) = (-1)^(n+1)(2n+1)binomial(2n, n)Sum_{i=0..n} x^ibinomial(n, i)/(n+i+1).