Enneagonal numbers for which both the sum of the digits and the product of the digits are also enneagonal numbers.

A117053

Enneagonal numbers for which both the sum of the digits and the product of the digits are also enneagonal numbers.

Terms

    a(0) =0a(1) =1a(2) =9a(3) =1350a(4) =10071a(5) =39804a(6) =46806a(7) =66309a(8) =80484a(9) =175056a(10) =204369a(11) =226950a(12) =235950a(13) =260169a(14) =305916a(15) =450186a(16) =460284a(17) =473064a(18) =556206a(19) =570246a(20) =581604a(21) =676500a(22) =704481a(23) =733029a(24) =822075a(25) =835701a(26) =930606a(27) =1015476a(28) =1065084a(29) =1155750

External references