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A126702 a(n) = prime(!n), where !n is subfactorial n. 0
2, 3, 23, 193, 1697, 15907, 161773, 1777543, 21084257, 269475737, 3696588877, 54223012561, 847458120167, 14065357995331, 247134401977037, 4583801628003613, 89514011909036503, 1836054207193376321 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
FORMULA
a(n) = A000040(A000166(n)). - Amiram Eldar, Aug 27 2020
EXAMPLE
a(3) = 23,because !4 = 9 and the 9th prime is 23.
MATHEMATICA
Prime[Subfactorial[Range[2, 15]]] (* Harvey P. Dale, Nov 11 2011 *)
CROSSREFS
Sequence in context: A009180 A359840 A041459 * A260126 A260125 A020458
KEYWORD
nonn,hard,more
AUTHOR
Shyam Sunder Gupta, Feb 11 2007
EXTENSIONS
a(16)-a(19) using Kim Walisch's primecount, from Amiram Eldar, Aug 27 2020
STATUS
approved

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Last modified July 21 10:41 EDT 2024. Contains 374472 sequences. (Running on oeis4.)