Triangle, generated from (3^(n-k) * 5^k) table.

Terms

a(0) =1a(1) =3a(2) =5a(3) =9a(4) =15a(5) =25a(6) =27a(7) =45a(8) =75a(9) =125a(10) =81a(11) =135a(12) =225a(13) =375a(14) =625a(15) =243a(16) =405a(17) =675a(18) =1125a(19) =1875a(20) =3125a(21) =729a(22) =1215a(23) =2025a(24) =3375a(25) =5625a(26) =9375a(27) =15625a(28) =2187a(29) =3645