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 A255646 Odd triprimes modulo 10. 3
 7, 5, 3, 5, 9, 5, 7, 5, 7, 3, 5, 1, 5, 5, 7, 1, 5, 5, 1, 3, 5, 9, 5, 5, 3, 3, 5, 7, 3, 9, 5, 7, 9, 3, 5, 9, 5, 5, 5, 5, 7, 3, 7, 1, 9, 9, 5, 1, 5, 5, 3, 5, 9, 5, 7, 7, 9, 5, 1, 7, 3, 5, 5, 1, 5, 5, 1, 7, 9, 5, 7, 5, 1, 5, 3, 5, 7, 1, 7, 3, 5, 7, 3, 9, 5, 5 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Final digits of odd triprimes; a(n) = A046316(n) mod 10. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a255646 = flip mod 10 . a046316 (PARI) do(x)=my(v=List(), t); forprime(p=3, x\9, forprime(q=3, min(x\(3*p), p), t=p*q; forprime(r=3, min(x\t, q), listput(v, t*r)))); Set(v)%10 \\ CROSSREFS Cf. A046316, subsequence of A253721. Sequence in context: A176974 A198983 A019935 * A255196 A206643 A257499 Adjacent sequences:  A255643 A255644 A255645 * A255647 A255648 A255649 KEYWORD nonn AUTHOR Reinhard Zumkeller, May 05 2015 STATUS approved

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Last modified October 22 17:39 EDT 2019. Contains 328319 sequences. (Running on oeis4.)