Smallest multiple of 2n+1 with the property that its digits are odd and each digit is two less (mod 10) than the previous digit, or 0 if no such number exists.
A062887
Smallest multiple of 2n+1 with the property that its digits are odd and each digit is two less (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) =319a(6) =975a(7) =75a(8) =7531a(9) =19a(10) =197531975319a(11) =3197a(12) =75a(13) =5319a(14) =319a(15) =31a(17) =53197531975a(18) =1975319a(19) =975a(20) =531975
External references
- oeis: A062887