A349316 Where records occur in A348674.

0, 10, 100, 120, 1010, 1020, 1120, 1230, 10120, 10130, 10230, 10240, 11230, 11240, 12240, 12350, 101130, 101240, 101350, 102240, 102350, 102460, 112240, 112350, 112460, 122360, 122470, 123470, 123580, 1011240, 1011250, 1011350, 1011360, 1012250, 1012360, 1012460

Offset: 1

Author

Alois P. Heinz, Nov 14 2021

Keywords

• nonn
• base

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..105

Crossrefs

Cf. A348674, A349315.

Programs

Maple

b:= proc(s) option remember; (n-> {parse(s), seq(seq(seq(x+y,
      y=b(s[i+1..n])), x=b(s[1..i])), i=1..n-1)})(length(s))
    end:
a:= proc(n) option remember; local k, t; t:=nops(b(""||(a(n-1))));
      for k from 1+a(n-1) while nops(b(""||k))<=t do od; k
    end: a(1):=0:
seq(a(n), n=1..29);

Formula

A349315(a(n)) = 1.

A348674(a(n)) < A348674(a(n+1)).