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A022899 Number of solutions to c(1)p(2)+...+c(n)p(n+1) = 2, where c(i) = +-1 for i>1, c(1) = 1, p(i) = primes. 0
0, 1, 0, 1, 0, 1, 0, 3, 0, 6, 0, 19, 0, 61, 0, 197, 0, 644, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,8

LINKS

Table of n, a(n) for n=1..19.

CROSSREFS

Sequence in context: A115456 A007386 A007385 * A081978 A117784 A197807

Adjacent sequences:  A022896 A022897 A022898 * A022900 A022901 A022902

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 18 18:42 EDT 2013. Contains 225423 sequences.