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A123215
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Numbers n such that (n!)^4 + 1 is prime.
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0
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OFFSET
| 1,3
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COMMENTS
| Exponent 4 analogue of A046029 Numbers n such that (n!)^2+1 is prime. Numbers k such that k! is an element of A000068 Numbers n such that n^4 + 1 is prime.
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MATHEMATICA
| Select[Range[200], PrimeQ[#!^4 + 1] &]
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PROG
| (MAGMA)[ n: n in [0..300] | IsPrime((Factorial(n)^4)+1)][From Vincenzo Librandi, Dec 22 2010]
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CROSSREFS
| Cf. A000068, A037896, A046029.
Sequence in context: A162222 A010346 A089142 * A051855 A058070 A151413
Adjacent sequences: A123212 A123213 A123214 * A123216 A123217 A123218
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KEYWORD
| easy,nonn
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AUTHOR
| Jonathan Vos Post (jvospost3(AT)gmail.com), Oct 05 2006
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EXTENSIONS
| a(7) from Vincenzo Librandi, Dec 22 2010
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