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A242766
a(n) = floor(sqrt(n!+1)).
1
1, 1, 1, 2, 5, 11, 26, 71, 200, 602, 1904, 6317, 21886, 78911, 295259, 1143535, 4574143, 18859677, 80014834, 348776576, 1559776268, 7147792818, 33526120082, 160785623545, 787685471322, 3938427356614, 20082117944245, 104349745809073, 552166953567228
OFFSET
0,4
LINKS
MATHEMATICA
Table[Floor[Sqrt[n! + 1]], {n, 0, 30}]
PROG
(Magma) [Floor(Sqrt(Factorial(n)+1)): n in [0..30]];
(PARI) a(n)={sqrtint(n!+1)} \\ Andrew Howroyd, Jan 17 2018
CROSSREFS
Cf. A163524.
Sequence in context: A343872 A000664 A364597 * A182580 A067922 A212567
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, May 29 2014
STATUS
approved