1,1

A145582(n) is the number of rank one toric log del Pezzo surfaces with index L = n. Both are in the table for Theorem 1.2, p.4 of Kasprzyk, Kreuzer and Nill.

Alexander M. Kasprzyk, Maximilian Kreuzer and Benjamin Nill, On the combinatorial classification of toric log del Pezzo surfaces, Oct 13, 2008.

Cf. A145582.

Sequence in context: A054314 A115278 A064634 this_sequence A129617 A064816 A132299

Adjacent sequences: A145578 A145579 A145580 this_sequence A145582 A145583 A145584

nonn

Jonathan Vos Post (jvospost3(AT)gmail.com), Oct 14 2008