A370554 - cp's OEIS frontend

A370554 a(n) is the denominator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.

n	a(n)
1	1
2	2
3	3
4	3
5	12
6	24
7	252
8	56
9	18144
10	5184
11	199584
12	33264
13	2395008
14	48384
15	50295168
16	100590336
17	804722688
18	146313216
19	137607579648
20	6552741888
21	11559036690432
22	1216740704256
23	2924436282679296
24	835553223622656
25	70186470784303104
26	226043384168448
27	1895034711176183808

[1, 2, 3, 3, 12, 24, 252, 56, 18144, 5184, 199584, 33264, 2395008, 48384, 50295168, 100590336, 804722688, 146313216, 137607579648, 6552741888, 11559036690432, 1216740704256, 2924436282679296, 835553223622656, 70186470784303104, 226043384168448, 1895034711176183808]

cp's OEIS Frontend

A370554 a(n) is the denominator of the imaginary part of Product_{k=1..n} (1 + i/k) where i is the imaginary unit.

Table of values

List of values