Numbers k having at least two complementary pairs of divisors (q, p) and (p', q') such that k = p*q = p'*q' where the decimal digits of p' are the 9's complement of the decimal digits of p and the decimal digits of q' are the 9's complement of the decimal digits of q.

A226587

Numbers k having at least two complementary pairs of divisors (q, p) and (p', q') such that k = p*q = p'*q' where the decimal digits of p' are the 9's complement of the decimal digits of p and the decimal digits of q' are the 9's complement of the decimal digits of q.

Terms

    a(0) =88a(1) =154a(2) =198a(3) =220a(4) =888a(5) =1554a(6) =1998a(7) =2220a(8) =8888a(9) =9768a(10) =15554a(11) =17094a(12) =19998a(13) =21978a(14) =22220a(15) =24420a(16) =88888a(17) =89890a(18) =97768a(19) =105444a(20) =112918a(21) =120190a(22) =127260a(23) =134128a(24) =140794a(25) =147258a(26) =153520a(27) =155554a(28) =159580a(29) =165438

External references