A022997 - cp's OEIS frontend

A022997 Numerator of n(n-2)(2n-1)/(2(n-1)).

n	a(n)
2	0
3	15
4	28
5	135
6	132
7	455
8	360
9	1071
10	760
11	2079
12	1380
13	3575
14	2268
15	5655
16	3472
17	8415
18	5040
19	11951
20	7020
21	16359
22	9460
23	21735
24	12408
25	28175
26	15912
27	35775
28	20020
29	44631
30	24780
31	54839
32	30240
33	66495
34	36448
35	79695
36	43452
37	94535
38	51300
39	111111
40	60040
41	129519
42	69720
43	149855

[0, 15, 28, 135, 132, 455, 360, 1071, 760, 2079, 1380, 3575, 2268, 5655, 3472, 8415, 5040, 11951, 7020, 16359, 9460, 21735, 12408, 28175, 15912, 35775, 20020, 44631, 24780, 54839, 30240, 66495, 36448, 79695, 43452, 94535, 51300, 111111, 60040, 129519, 69720, 149855]

cp's OEIS Frontend

A022997 Numerator of n(n-2)(2n-1)/(2(n-1)).

Table of values

List of values

cp's OEIS Frontend

A022997 Numerator of n*(n-2)*(2*n-1)/(2*(n-1)).

Table of values

List of values

A022997 Numerator of n(n-2)(2n-1)/(2(n-1)).