1,2

P. C. Fishburn and J. A. Reeds, Counting split semiorders, Order, 18(2): 119-128, 2001.

Cf. A000111, A058260.

Sequence in context: A000111 A163747 A007976 this_sequence A033543 A124531 A129578

Adjacent sequences: A058256 A058257 A058258 this_sequence A058260 A058261 A058262

nonn,hard,nice

N. J. A. Sloane (njas(AT)research.att.com), Dec 06 2000