A291982 - cp's OEIS frontend

A291982 a(n) = Euler(n, n+1) * 2^valuation(n+1, 2), where Euler(n, x) denotes the Euler polynomial.

n	a(n)
0	1
1	3
2	6
3	161
4	380
5	9251
6	68922
7	9718545
8	24721272
9	1140755269
10	14712346550
11	1678097074579
12	13104139232340
13	889926827467887
14	16319429252249970
15	10286621696853755681
16	27076409740571217392
17	2427916115944458451025
18	57728302956904672126062

[1, 3, 6, 161, 380, 9251, 68922, 9718545, 24721272, 1140755269, 14712346550, 1678097074579, 13104139232340, 889926827467887, 16319429252249970, 10286621696853755681, 27076409740571217392, 2427916115944458451025, 57728302956904672126062]

cp's OEIS Frontend

A291982 a(n) = Euler(n, n+1) * 2^valuation(n+1, 2), where Euler(n, x) denotes the Euler polynomial.

Table of values

List of values