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 A304733 The largest prime factor of the n-th term of EKG-sequence: a(n) = A006530(A064413(n)). 3
 1, 2, 2, 3, 3, 3, 3, 2, 5, 5, 5, 3, 7, 7, 7, 3, 2, 5, 11, 11, 11, 3, 5, 5, 7, 7, 13, 13, 13, 3, 2, 17, 17, 17, 7, 19, 19, 19, 5, 5, 11, 23, 23, 23, 3, 5, 13, 3, 7, 7, 7, 5, 11, 13, 7, 29, 29, 29, 11, 31, 31, 31, 3, 2, 17, 37, 37, 37, 5, 13, 19, 5, 41, 41, 41, 3, 7, 11, 11, 43, 43, 43, 5, 17, 19, 5, 23, 47, 47, 47, 3, 7, 13, 13, 17, 11, 7, 3, 53, 53, 53, 19 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..10000 FORMULA a(n) = A006530(A064413(n)). PROG (PARI) A006530(n) = if(n>1, vecmax(factor(n)[, 1]), 1); A304733(n) = A006530(A064413(n)); \\ Needs also an implementation of A064413. CROSSREFS Cf. A006530, A064413, A064741, A304734. Cf. also A251103. Sequence in context: A321860 A266123 A115230 * A165024 A300402 A211020 Adjacent sequences:  A304730 A304731 A304732 * A304734 A304735 A304736 KEYWORD nonn AUTHOR Antti Karttunen, May 18 2018 STATUS approved

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Last modified January 17 23:15 EST 2019. Contains 319251 sequences. (Running on oeis4.)