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A108097 Numbers k such that there is no j <= k with k!+j!-1 prime. 0
1, 13, 19, 30, 32, 48, 54, 62, 63, 64, 68, 74, 75, 78, 90, 92, 93, 106, 109, 111, 112, 115, 117, 123, 128, 129, 131, 133, 135, 138, 144, 146, 156, 158, 159, 161, 162, 168, 170, 174, 175, 196, 197, 205, 211, 213, 217, 218, 219, 220, 230, 234 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..52.

MATHEMATICA

Select[Range[250], NoneTrue[(#!-1)+Range[#]!, PrimeQ]&] (* The program uses the NoneTrue function from Mathematica version 10 *) (* Harvey P. Dale, Mar 28 2015 *)

CROSSREFS

Cf. A075758.

Sequence in context: A120140 A101849 A141562 * A102764 A164318 A307533

Adjacent sequences:  A108094 A108095 A108096 * A108098 A108099 A108100

KEYWORD

nonn

AUTHOR

Ralf Stephan, Jun 01 2005

STATUS

approved

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Last modified October 21 16:53 EDT 2021. Contains 348155 sequences. (Running on oeis4.)