1,1

a(n)==1(mod 4).

Cf. A140862.

Sequence in context: A146845 A167710 A126359 this_sequence A107144 A137815 A089523

Adjacent sequences: A141405 A141406 A141407 this_sequence A141409 A141410 A141411

nonn

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Aug 04 2008