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A107318 Number of ordered Goldbach partitions of 10^n. +0
4
3, 12, 56, 254, 1620, 10804, 77614, 582800, 4548410, 36400976, 298182320, 2487444740, 21066301710 (list; graph; listen)
OFFSET

1,1

COMMENT

Number of ways of writing 10^n as the sum of two odd primes, when the order matters.

Apart from a(1), equals 2*A065577(n).

CROSSREFS

See A065577 for further information.

Sequence in context: A001764 A120920 A064314 this_sequence A050147 A120921 A074533

Adjacent sequences: A107315 A107316 A107317 this_sequence A107319 A107320 A107321

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), based on email from R. J. Mathar, Nov 07 2006

EXTENSIONS

a(13) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 16 2009

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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