1,2

Table of n, a(n) for n=1..25.

a(1)= 1 is a run of length 3 before 4 has 2 prime factors. The run 11,12,13 is no new record.

a(2)=16=3*5+1 is a run of length 5 below 3*7, a(3)=2*13+1=27 is a run of length 6 below 3*11.

Cf. A067665.

Sequence in context: A286429 A329206 A280935 * A123963 A073396 A338093

Adjacent sequences: A067647 A067648 A067649 * A067651 A067652 A067653

nonn

G. L. Honaker, Jr., Feb 02 2002

More terms from Jud McCranie beginning with a(5)=598, Feb 14 2002

approved