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A048767 If n = Product (p_j^k_j) then a(n) = Product ([ k_j ]th prime^pi[ p_j ]) where pi(p_j) is A000720. 2
2, 4, 3, 8, 8, 16, 5, 9, 16, 32, 12, 64, 32, 32, 7, 128, 18, 256, 24, 64, 64, 512, 20, 27, 128, 25, 48, 1024, 64, 2048, 11, 128, 256, 128, 27, 4096, 512, 256, 40, 8192, 128, 16384, 96, 72, 1024, 32768, 28, 81, 54 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

EXAMPLE

E.g. n=6=(2^1)*(3^1), a(6)=([ first prime ]^pi[ 2 ])*([ first prime ]^pi[ 3 ])=(2^1)*(2^2)=8.

CROSSREFS

Cf. A008477, A048768, A048769.

Sequence in context: A067179 A188843 A188706 * A182944 A163511 A129593

Adjacent sequences:  A048764 A048765 A048766 * A048768 A048769 A048770

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto (6284968128(AT)geocities.co.jp)

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.