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First occurrence of n in A220115.
1

%I #10 Jan 10 2023 11:38:44

%S 0,3,13,47,55,254,767,987,6909,16127,28657,28670,125951,196575,393213,

%T 4160255,4177911,25157623,25157631,46137325,67088375,268296191,

%U 268434303,268435455

%N First occurrence of n in A220115.

%C Least k such that A000120(k) - A007895(k) = n.

%Y Cf. A000120, A007895, A220115, A220118.

%K nonn,base,more

%O 0,2

%A _Alex Ratushnyak_, Dec 05 2012