If a(n-1)=abcde..., where a,b,c,d,e... are the digits, then a(n)=abcde...+a*bcde...+ab*cde...+abc*de...+abcd*e...+....

A108721

If a(n-1)=abcde..., where a,b,c,d,e... are the digits, then a(n)=abcde...+a*bcde...+ab*cde...+abc*de...+abcd*e...+....

Terms

    a(0) =111a(1) =133a(2) =205a(3) =315a(4) =515a(5) =845a(6) =1625a(7) =3460a(8) =6880a(9) =17600a(10) =35400a(11) =65600a(12) =138200a(13) =310600a(14) =547000a(15) =1160000a(16) =1980000a(17) =4480000a(18) =9920000a(19) =20180000a(20) =40220000a(21) =57940000a(22) =174380000a(23) =528780000a(24) =1964040000a(25) =5800840000a(26) =17533280000a(27) =64641960000

External references