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A101657 a(n)=Product{k=0..n, 1+2^A101650(k)}/2. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

CROSSREFS

Sequence in context: A014767 A002319 A195307 * A104371 A104350 A220027

Adjacent sequences:  A101654 A101655 A101656 * A101658 A101659 A101660

KEYWORD

easy,nonn

AUTHOR

Paul Barry, Dec 10 2004

STATUS

approved

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Last modified February 23 17:23 EST 2018. Contains 299584 sequences. (Running on oeis4.)