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A319344 a(n) = Product_{d|n, d>1} prime(A318881(d)), where A318881(d) records the prime signature of A000010(d). 4
1, 2, 3, 6, 5, 18, 7, 30, 21, 50, 7, 270, 11, 98, 195, 390, 17, 882, 11, 1950, 231, 98, 7, 17550, 55, 242, 231, 3234, 11, 76050, 19, 6630, 231, 578, 805, 145530, 29, 242, 759, 165750, 23, 106722, 19, 3234, 31395, 98, 7, 3878550, 133, 6050, 1581, 16698, 11, 106722, 805, 371910, 957, 242, 7, 252105750, 37, 722, 46893, 205530, 2255, 106722, 19 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..8192

FORMULA

a(n) = Product_{d|n, d>1} prime(A318881(d)).

PROG

(PARI) A319344(n) = { my(m=1); fordiv(n, d, if((d>1), m *= prime(A318881(d)))); (m); }; \\ Needs also code from A318881

CROSSREFS

Cf. A318881, A319342, A319345 (rgs-transform).

Cf. also A305984.

Sequence in context: A066117 A222311 A156833 * A260443 A206242 A124655

Adjacent sequences:  A319341 A319342 A319343 * A319345 A319346 A319347

KEYWORD

nonn

AUTHOR

Antti Karttunen, Sep 17 2018

STATUS

approved

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Last modified July 22 20:51 EDT 2019. Contains 325226 sequences. (Running on oeis4.)