1,2

Conjecture: there are infinitely many consecutive terms in this sequence. For example, sopfr(143335) = 377 and sopfr(143336) = 89 are both Fibonacci numbers.

Table of n, a(n) for n=1..58.

a(10)=22 because the sum of its prime factors is 13, the 7th

Fibonacci number.

Cf. A001414.

Sequence in context: A100330 A331043 A020473 * A075371 A218948 A057704

Adjacent sequences: A098830 A098831 A098832 * A098834 A098835 A098836

nonn

Jason Earls, Oct 10 2004

approved