Octagonal numbers for which the product of the digits is also an octagonal number.

Terms

a(0) =0a(1) =1a(2) =8a(3) =40a(4) =280a(5) =408a(6) =560a(7) =1045a(8) =1160a(9) =1408a(10) =1680a(11) =2640a(12) =3008a(13) =3201a(14) =3400a(15) =3605a(16) =4033a(17) =4720a(18) =5208a(19) =5720a(20) =7105a(21) =7400a(22) =7701a(23) =8008a(24) =8640a(25) =10325a(26) =10680a(27) =11041a(28) =11408a(29) =12160