A101657 a(n)=Product{k=0..n, 1+2^A101650(k)}/2.

1, 2, 6, 12, 60, 180, 900, 1800, 3600, 18000, 54000, 162000, 486000, 2430000, 4860000, 9720000, 29160000, 58320000, 116640000, 583200000, 1749600000, 5248800000, 10497600000, 31492800000, 62985600000, 188956800000

Offset

0,2

Links

Table of n, a(n) for n=0..25.

Crossrefs

Sequence in context: A014767 A002319 A195307 * A104371 A104350 A328522

Adjacent sequences: A101654 A101655 A101656 * A101658 A101659 A101660

Keyword

easy,nonn

Author

Paul Barry, Dec 10 2004

Status

approved