Hexagonal numbers whose number of divisors is also a hexagonal number.

Terms

a(0) =1a(1) =28a(2) =45a(3) =153a(4) =325a(5) =4753a(6) =7381a(7) =29161a(8) =56953a(9) =65341a(10) =73536a(11) =166753a(12) =266085a(13) =270480a(14) =354061a(15) =1062153a(16) =1383616a(17) =3123750a(18) =3525840a(19) =3873936a(20) =5247180a(21) =5649841a(22) =6060421a(23) =6644835a(24) =6835753a(25) =6924781a(26) =7006896a(27) =7870528a(28) =9925740a(29) =10285380