0,2

Table of n, a(n) for n=0..7.

1+x/2 has 1 real root. Then a(2)=17 is the least value > 2 such that 1+x/2+x^2/a(2) has 2 distinct real roots.

Sequence in context: A015202 A308864 A217284 * A293178 A172341 A007759

Adjacent sequences: A220473 A220474 A220475 * A220477 A220478 A220479

nonn,more

Benoit Cloitre, Dec 15 2012

approved