Smallest k such that n+k and n*k have the same prime signature, or 0 if no such number exists.

Terms

a(0) =2a(1) =1a(2) =7a(3) =41a(4) =15a(5) =134a(6) =3a(7) =127a(8) =11a(9) =2a(10) =3a(11) =548a(12) =2a(13) =1a(14) =3a(15) =389a(16) =5a(17) =582a(18) =2a(19) =316a(20) =1a(21) =38a(22) =3a(23) =2216a(24) =3a(25) =2a(26) =13a(27) =212a(28) =5a(29) =2742