A348024 - cp's OEIS frontend

A348024 a(n) = [x^n] Product_{k=1..2n} (x + (-1)^k k).

n	a(n)
0	1
1	1
2	-13
3	-87
4	2609
5	34965
6	-1638841
7	-33411007
8	2128380881
9	58501278297
10	-4709853961605
11	-163166745402375
12	15875893807564465
13	664163782026582877
14	-75766955207796981345
15	-3716140360596415682175
16	486265092408065178623265
17	27363821966293458296896305
18	-4039473192629570940395992765

[1, 1, -13, -87, 2609, 34965, -1638841, -33411007, 2128380881, 58501278297, -4709853961605, -163166745402375, 15875893807564465, 664163782026582877, -75766955207796981345, -3716140360596415682175, 486265092408065178623265, 27363821966293458296896305, -4039473192629570940395992765]

cp's OEIS Frontend

A348024 a(n) = [x^n] Product_{k=1..2n} (x + (-1)^k k).

Table of values

List of values

cp's OEIS Frontend

A348024 a(n) = [x^n] Product_{k=1..2*n} (x + (-1)^k * k).

Table of values

List of values

A348024 a(n) = [x^n] Product_{k=1..2n} (x + (-1)^k k).