Smallest multiple of 2n+1 with property that digits are odd and each digit is two more (mod 10) than the previous digit; or 0 if no such number exists.
A062886
Smallest multiple of 2n+1 with property that digits are odd and each digit is two more (mod 10) than the previous digit; or 0 if no such number exists.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =913a(6) =13a(7) =135a(8) =357a(9) =57a(10) =357a(11) =1357a(12) =0a(13) =135a(14) =9135a(15) =91357a(17) =35a(18) =13579a(19) =13579135791a(20) =7913a(22) =135a(23) =913579135791a(24) =79135a(25) =357a(26) =1357913a(27) =7913579135a(28) =57a(29) =1357a(31) =9135
External references
- oeis: A062886