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A103511
Smallest prime > double factorial number A001147(n).
1
2, 5, 17, 107, 947, 10399, 135151, 2027033, 34459429, 654729139, 13749310577, 316234143227, 7905853580633, 213458046676877, 6190283353629379, 191898783962510743, 6332659870762850657, 221643095476699771957, 8200794532637891559553, 319830986772877770815629
OFFSET
1,1
EXAMPLE
1!!=1, 2 is the first prime greater than 1;
6!!=10395, 10399 is the first prime greater than 10395.
MATHEMATICA
Table[NextPrime[(2n-1)!!], {n, 20}] (* James C. McMahon, Jan 21 2024 *)
CROSSREFS
Cf. A001147.
Sequence in context: A203006 A143878 A081546 * A254132 A161609 A228238
KEYWORD
nonn
AUTHOR
Lei Zhou, Feb 15 2005
EXTENSIONS
a(19)-a(20) from James C. McMahon, Jan 21 2024
STATUS
approved