1,2

a(n)/a(n-1) tends to phi.

a(6) = 12 = sum of row 6 terms of triangle A137712: (8 + 2 + 1 + 0 + 0 + 1).

Cf. A137712.

Sequence in context: A060986 A054540 A117537 this_sequence A018065 A048818 A062713

Adjacent sequences: A137710 A137711 A137712 this_sequence A137714 A137715 A137716

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 08 2008