Numbers k such that sopfr(k + omega(k)) = sopfr(k), where sopfr(i) = A001414(i) and omega(i) = A001221(i).

A187878

Numbers k such that sopfr(k + omega(k)) = sopfr(k), where sopfr(i) = A001414(i) and omega(i) = A001221(i).

Terms

    a(0) =5a(1) =8a(2) =10a(3) =125a(4) =231a(5) =250a(6) =470a(7) =1846a(8) =2844a(9) =2856a(10) =3570a(11) =5126a(12) =5320a(13) =7473a(14) =8687a(15) =12555a(16) =12573a(17) =16740a(18) =16764a(19) =17877a(20) =18630a(21) =20601a(22) =21620a(23) =22011a(24) =24823a(25) =27468a(26) =28861a(27) =31941a(28) =33120a(29) =37053

External references