Numbers that start a run of four consecutive triangular numbers with four distinct prime factors.

Terms

a(0) =16653a(1) =16836a(2) =17020a(3) =17205a(4) =17391a(5) =27495a(6) =29890a(7) =30135a(8) =50721a(9) =51040a(10) =51360a(11) =51681a(12) =70125a(13) =81003a(14) =81406a(15) =84255a(16) =84666a(17) =85078a(18) =85491a(19) =85905a(20) =89676a(21) =90100a(22) =110215a(23) =110685a(24) =111156a(25) =142311a(26) =181503a(27) =214185a(28) =222111a(29) =222778