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A181577
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Prime number of trailing end 0's associated with p! where p = A181576(n).
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2
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2, 2, 3, 3, 7, 13, 19, 31, 37, 41, 43, 47, 47, 53, 71, 89, 97, 103, 107, 109, 113, 113, 137, 139, 149, 151, 151, 157, 163, 181, 191, 197, 211, 227, 233, 239, 251, 257, 263, 263, 269, 271, 277, 293, 313, 347, 353, 359, 383, 389, 401, 421, 421, 433, 443, 463, 499
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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Select[ IntegerExponent[ #! ] & /@ Prime@ Range@ 310, PrimeQ] (* Robert G. Wilson v, Nov 06 2010 *)
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PROG
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(PARI) lista(pmax) = {my(tz); forprime(p = 1, pmax, tz = (p - sumdigits(p, 5))/4; if(isprime(tz), print1(tz, ", "))); } \\ Amiram Eldar, May 03 2024
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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