Numbers k such that k concatenated with itself gives the product of two numbers which differ by 5.

A116158

Numbers k such that k concatenated with itself gives the product of two numbers which differ by 5.

Terms

    a(0) =6a(1) =96a(2) =150a(3) =186a(4) =324a(5) =376a(6) =666a(7) =996a(8) =2046a(9) =3000a(10) =9996a(11) =82650a(12) =99996a(13) =100384a(14) =466716a(15) =999996a(16) =1322316a(17) =4049584a(18) =9999996a(19) =67820074a(20) =99999996a(21) =110003884a(22) =135734074a(23) =156502836a(24) =196043286a(25) =213017754a(26) =238849000a(27) =261405396

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