Integers of the form m*(6*m -+ 1)/2.

Terms

a(0) =11a(1) =13a(2) =46a(3) =50a(4) =105a(5) =111a(6) =188a(7) =196a(8) =295a(9) =305a(10) =426a(11) =438a(12) =581a(13) =595a(14) =760a(15) =776a(16) =963a(17) =981a(18) =1190a(19) =1210a(20) =1441a(21) =1463a(22) =1716a(23) =1740a(24) =2015a(25) =2041a(26) =2338a(27) =2366a(28) =2685a(29) =2715