A107318 Number of ordered Goldbach partitions of 10^n.

3, 12, 56, 254, 1620, 10804, 77614, 582800, 4548410, 36400976, 298182320, 2487444740, 21066301710

Offset

1,1

Comments

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).

Links

Table of n, a(n) for n=1..13.

Crossrefs

See A065577 for further information.

Sequence in context: A362085 A185630 A284843 * A176281 A050147 A259800

Adjacent sequences: A107315 A107316 A107317 * A107319 A107320 A107321

Keyword

nonn

Author

N. J. A. Sloane, based on email from R. J. Mathar, Nov 07 2006

Extensions

a(13) from Donovan Johnson, Nov 16 2009

Status

approved