A207652 - cp's OEIS frontend

A207652 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^k - 1)/(1 - x^k).

n	a(n)
0	1
1	1
2	3
3	10
4	45
5	249
6	1709
7	13912
8	131168
9	1402706
10	16757321
11	221018769
12	3188425939
13	49925523804
14	843121969923
15	15272776193787
16	295372123082865
17	6073931908657770
18	132329525329523223
19	3044691799670213778
20	73771773281455834427
21	1877511491197391256001

[1, 1, 3, 10, 45, 249, 1709, 13912, 131168, 1402706, 16757321, 221018769, 3188425939, 49925523804, 843121969923, 15272776193787, 295372123082865, 6073931908657770, 132329525329523223, 3044691799670213778, 73771773281455834427, 1877511491197391256001]

cp's OEIS Frontend

A207652 G.f.: Sum_{n>=0} Product_{k=1..n} ((1+x)^k - 1)/(1 - x^k).

Table of values

List of values