This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A245761 #16 Jan 15 2023 18:09:46 %S A245761 0,1,2,3,4,5,6,7,9,12 %N A245761 Numbers with a maximal multiplicative persistence of 1 in any base. %e A245761 12 is in the sequence since the persistence of 12 is at most 1 in any base. I.e. it takes at most one step to go from 12 to a single digit in any base, e.g., in base 2 we have 1100 -> 0. In base 5 we have 22 -> 4. In bases 12 and above the initial number is already a single digit. %e A245761 This sequence is complete - there are no other terms. - _Alois P. Heinz_, Jul 31 2014 %Y A245761 Cf. A003001, A031346, A064867, A064868, A046510, A245760. %K A245761 nonn,full,fini %O A245761 1,3 %A A245761 _Sergio Pimentel_, Jul 31 2014