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.

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

Offset

1,5

Links

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

Crossrefs

Subsequence of A224712.

Sequence in context: A360691 A302707 A355399 * A089169 A291563 A178151

Adjacent sequences: A224711 A224712 A224713 * A224715 A224716 A224717

Keyword

nonn

Author

J. Stauduhar, Apr 21 2013

Status

approved