1,2

a(n)/n tends to 2.

n = the set of natural numbers generating "4" using the formula of A089959: floor( 1/({n*k}*(1 - {n*k}) where k = .6180339... = phi^(-1).; {x} = fractional part.

a(5) = 9 since A089959(9) = 4.

Cf. A089959.

Sequence in context: A002481 A085817 A047508 this_sequence A067888 A043337 A023710

Adjacent sequences: A089957 A089958 A089959 this_sequence A089961 A089962 A089963

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 16 2003