A083468 Smallest multiple of n which is the reverse concatenation of n consecutive numbers.0 if no such number exists.
1, 32, 321, 5432, 987645, 765432, 22212019181716, 98765432, 987654321, 19181716151413121110, 2019181716151413121110, 1312111098765432, 19181716151413121110987, 2928272625242322212019181716
Offset: 1
Extensions
More terms from Sam Alexander, Feb 27 2004