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A288370
Primes of the form k!10+2, where k!10 is the decuple factorial number (A288327).
1
3, 5, 7, 11, 13, 41, 173, 233, 1877, 293603, 318482201, 3047775608243, 22045250515087152640289, 1302844523174285888671877, 930620100318118916029523201, 4831436058626442432403564453127, 2060356301148292483532951454058361, 9936127455089061347552058319626135203
OFFSET
1,1
LINKS
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 10] + 2, {i, 0, 100}], PrimeQ[#]&]
CROSSREFS
Sequence in context: A179739 A093988 A175914 * A108817 A288892 A373349
KEYWORD
nonn
AUTHOR
Robert Price, Jun 08 2017
STATUS
approved