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A177138
Numbers of the form (n!*(n+1))/2 with n or (n+1) prime.
0
1, 3, 12, 60, 360, 2520, 20160, 19958400, 239500800, 3113510400, 43589145600, 177843714048000, 3201186852864000, 60822550204416000, 1216451004088320000, 12926008369442488320000, 310224200866619719680000, 4420880996869850977271808000000
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..18.
CROSSREFS
Cf. A001710.
Sequence in context: A077134 A001710 A105752 * A053532 A357594 A159867
Adjacent sequences: A177135 A177136 A177137 * A177139 A177140 A177141
KEYWORD
nonn
AUTHOR
Giovanni Teofilatto, May 03 2010
EXTENSIONS
Corrected (1 inserted and a duplicate replaced) by R. J. Mathar, Jun 28 2010
STATUS
approved

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Last modified November 28 22:12 EST 2024. Contains 378208 sequences.
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