1,1

Smallest term in A116451 having exactly n prime factors;

a(n) = A116451(A116454(n)) = A116454(n) + 2 * n + 3;

a(n) = A005010(n-2) for n > 1.

a(1)=5=A000040(3) > A000040(2)=3 > A000040(1)=2;

a(2)=9=A001358(3) > A001358(2)=6 > A001358(1)=4;

a(3)=18=A014612(3) > A014612(2)=12 > A014612(1)=8;

a(4)=36=A014613(3) > A014613(2)=24 > A014613(1)=16.

Adjacent sequences: A116450 A116451 A116452 this_sequence A116454 A116455 A116456

Sequence in context: A061502 A110349 A036832 this_sequence A046578 A046590 A023521

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 16 2006