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A079708 Metaprime binary to standard binary conversion series. 1
0, 1, 2, 3, 6, 12, 20, 28, 140, 260, 64, 11, 30, 420, 7488, 1922800, 11285855256250575, 54979022626732989863421863670075405480 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Each term in the series is computed by translating the previous term to binary, then re-interpreting the binary expression as a product of metaprimes. Metaprimes follow the form p^(2^n) where p is a prime number and n is a nonnegative integer. See the link for more detailed explanation.

LINKS

Table of n, a(n) for n=0..17.

Will Nicholes, Metaprime binary series.

FORMULA

a(0)=0, a(n)=A052330(a(n-1)). - Thomas Ordowski, Jun 20 2005

EXAMPLE

20 (decimal) = 10100 (binary) 10100 (metaprime binary) = 7 * 1 * 4 * 1 * 1 = 28 (decimal)

CROSSREFS

Sequence in context: A007335 A103070 A233422 * A096571 A227940 A081156

Adjacent sequences:  A079705 A079706 A079707 * A079709 A079710 A079711

KEYWORD

nonn

AUTHOR

Will Nicholes, Jan 31 2003

EXTENSIONS

Link updated by Will Nicholes, Jun 07 2010

STATUS

approved

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Last modified September 26 00:10 EDT 2017. Contains 292500 sequences.