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A046922 Number of ways to express n as p+2a^2; p prime, a >= 0. +0
1
0, 1, 1, 1, 2, 0, 2, 0, 1, 1, 2, 0, 3, 0, 2, 0, 1, 0, 3, 1, 3, 0, 2, 0, 3, 0, 1, 0, 2, 0, 4, 0, 1, 1, 2, 0, 4, 0, 3, 0, 2, 0, 3, 0, 3, 0, 2, 0, 4, 0, 2, 1, 2, 0, 5, 0, 1, 0, 2, 0, 6, 0, 3, 0, 1, 0, 3, 0, 4, 0, 2, 0, 4, 1, 4, 0, 2, 0, 6, 0, 3, 0, 2, 0, 4, 0, 2, 0, 3, 0, 6, 0, 2, 0, 1, 0, 4, 0, 2 (list; graph; listen)
OFFSET

1,5

LINKS

L. Hodges, A lesser-known Goldbach conjecture, Math. Mag., 66 (1993), 45-47.

Index entries for sequences related to Goldbach conjecture

CROSSREFS

Sequence in context: A112712 A026608 A026612 this_sequence A029401 A086150 A105166

Adjacent sequences: A046919 A046920 A046921 this_sequence A046923 A046924 A046925

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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