OFFSET
1,3
COMMENTS
The number ((1+10^2)*(1+10^8)*(1+10^32)*(1+10^128)*(1+10^512))^3 is a term of the sequence. - Giovanni Resta, Aug 16 2018
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..350
MATHEMATICA
altQ[n_] := n < 10 || Union[Total /@ Partition[ Mod[ IntegerDigits@n, 2], 2, 1]] == {1}; Select[ Range[0, 10^4]^3, altQ[#] &] (* Giovanni Resta, Aug 16 2018 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Offset changed by Giovanni Resta, Aug 16 2018
STATUS
approved