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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

Index entries for sequences related to EKG sequence

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.)