References to A043112

Numbers n such that 1 and 4 occur juxtaposed in the base 5 representation of n but not of n-1.
9, 21, 34, 45, 59, 71, 84, 96, 105, 121, 134, 146, 159, 170, 184, 196, 209, 221, 225

1 seqfan posts