A065569 Smallest k such that omega(n+k) = omega(k).

2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 4, 3, 2, 2, 3, 2, 5, 4, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 14, 5, 4, 3, 2, 5, 4, 3, 2, 3, 2, 5, 4, 3, 2, 3, 2, 5, 4, 3, 2, 6, 8, 5, 4, 3, 2, 3, 2, 4, 3, 2, 4, 3, 2, 5, 4, 3, 2, 3, 2, 7, 8, 5, 4, 3, 2, 3, 2, 3, 2, 6, 10, 5, 4, 3, 2, 6, 6, 6, 15, 5, 4, 3, 2, 5, 4, 3, 2, 3, 2, 5, 4

Offset: 1

Author

Jason Earls, Nov 30 2001

Keywords

• nonn

Links

• Harry J. Smith, Table of n, a(n) for n=1..1000

Crossrefs

Cf. A001221, A065925.

Programs

PARI

a(n)= {for(k=1, oo, if(omega(k)==omega(n+k), return(k)))}