Numbers of the form (6^i)*(13^j), with i, j >= 0.

Terms

a(0) =1a(1) =6a(2) =13a(3) =36a(4) =78a(5) =169a(6) =216a(7) =468a(8) =1014a(9) =1296a(10) =2197a(11) =2808a(12) =6084a(13) =7776a(14) =13182a(15) =16848a(16) =28561a(17) =36504a(18) =46656a(19) =79092a(20) =101088a(21) =171366a(22) =219024a(23) =279936a(24) =371293a(25) =474552a(26) =606528a(27) =1028196a(28) =1314144a(29) =1679616