Triangular numbers for which the product of the digits is a nonzero hexagonal number.

Terms

a(0) =1a(1) =6a(2) =153a(3) =231a(4) =351a(5) =465a(6) =741a(7) =6786a(8) =24531a(9) =57291a(10) =58311a(11) =123753a(12) =153181a(13) =167331a(14) =278631a(15) =325221a(16) =372816a(17) =613278a(18) =783126a(19) =1136278a(20) =1476621a(21) =1511191a(22) =1516411a(23) =1783216a(24) =2191371a(25) =2512161a(26) =2676141a(27) =9127128a(28) =37311841a(29) =44731611