0,3

Pach and Agarwal, Combinatorial Geometry, p. 220, Problem 13.10.

f := n->n^2/4+3*n/2+g(n); g := n->if n mod 2 = 0 then 3 elif n mod 4 = 1 then 9/4 else 13/4; fi;

Adjacent sequences: A008808 A008809 A008810 this_sequence A008812 A008813 A008814

Sequence in context: A073627 A062042 A107817 this_sequence A073149 A065461 A008824

nonn

njas