A374368 Integers m, with k digits, such that m = Sum_{i=1..k} A003415(m without its i-th digit).

42080, 150922, 301280, 945688, 1014004, 4962140

Offset: 1

Author

Paolo P. Lava, Jul 06 2024

Keywords

• nonn
• base
• more

Crossrefs

Cf. A372753, A374308, A374309.

Programs

Maple

with(numtheory): P:=proc(q) local a,d,i,k,n,p,t;
for n from 1 to q do t:=0; a:=convert(n,base,10); for k from 1 to nops(a) do
d:=0; for i from 1 to nops(a) do if i<> k then d:=d*10+a[-i]; fi; od;
t:=d*add(op(2, p)/op(1, p),p=ifactors(d)[2])+t; od;
if n=t then print(n); fi; od; end: P(10^7);