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A158857 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158848 0
7, 0, 7, 7, 0, 8, 20, 0, 9, 10, 0, 23, 50, 0, 28, 42, 0, 69, 201, 0, 79, 93, 0, 216, 399, 0, 278, 445, 0, 684, 1649, 0, 630, 1008, 0, 2132, 4892, 0, 3066, 3681, 0, 6852 (list; graph; refs; listen; history; text; internal format)
OFFSET

17,1

LINKS

Table of n, a(n) for n=17..58.

CROSSREFS

Cf. A158848 A156537

Sequence in context: A010678 A010503 A335727 * A255727 A011438 A321022

Adjacent sequences:  A158854 A158855 A158856 * A158858 A158859 A158860

KEYWORD

nonn,uned

AUTHOR

Vladimir Shevelev, Mar 28 2009

STATUS

approved

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Last modified December 1 10:30 EST 2020. Contains 338833 sequences. (Running on oeis4.)