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A224714 The number of unordered partitions {a,b} of the odd numbers 2n-1 such that one of a and b is composite and the other is prime. 1
0, 0, 0, 1, 2, 4, 3, 4, 6, 5, 6, 8, 7, 9, 9, 8, 9, 11, 11, 10, 12, 11, 12, 14, 13, 15, 15, 14, 16, 16, 15, 16, 18, 18, 17, 19, 18, 19, 21, 21, 20, 22, 21, 23, 23, 22, 24, 24, 24, 23, 25, 24, 25, 27, 26, 27, 29, 28, 30, 30, 30, 30, 30, 30, 29, 31, 30, 32, 32 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

J. Stauduhar, Table of n, a(n) for n = 1..10000

CROSSREFS

Subsequence of A224712.

Sequence in context: A083172 A287797 A302707 * A089169 A291563 A178151

Adjacent sequences:  A224711 A224712 A224713 * A224715 A224716 A224717

KEYWORD

nonn

AUTHOR

J. Stauduhar, Apr 21 2013

STATUS

approved

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Last modified May 21 09:15 EDT 2019. Contains 323441 sequences. (Running on oeis4.)