A303175 - cp's OEIS frontend

A303175 a(n) = [x^n] Product_{k=1..n} 1/(1 - (n - k + 1)*x^k).

n	a(n)
0	1
1	1
2	5
3	34
4	322
5	3803
6	55297
7	953815
8	19086057
9	434477488
10	11086102633
11	313318606066
12	9714265351819
13	327788649292844
14	11957321196905337
15	468872400449456885
16	19666225828334583690
17	878560858388253803180
18	41645712575272737701666
19	2087686693048676581394052

[1, 1, 5, 34, 322, 3803, 55297, 953815, 19086057, 434477488, 11086102633, 313318606066, 9714265351819, 327788649292844, 11957321196905337, 468872400449456885, 19666225828334583690, 878560858388253803180, 41645712575272737701666, 2087686693048676581394052]

cp's OEIS Frontend

A303175 a(n) = [x^n] Product_{k=1..n} 1/(1 - (n - k + 1)*x^k).

Table of values

List of values