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A085575
Squares whose sum of nonsquare digits is a square.
1
0, 1, 4, 9, 36, 49, 100, 144, 225, 361, 400, 441, 729, 900, 1225, 1369, 1444, 1936, 2025, 2209, 2704, 3600, 3969, 4225, 4900, 5776, 7225, 7396, 7921, 8836, 9409, 10000, 10404, 11449, 11881, 14400, 14884, 17424, 19044, 19881, 21025, 22500, 24025
OFFSET
1,3
COMMENTS
If n is a member, then so is 100*n. - Robert Israel, Jul 06 2018
LINKS
EXAMPLE
a(10)=361 because 361=19^2 and 3+6=9.
MAPLE
f:= proc(n) local L;
L:= convert(subs(1=NULL, 4=NULL, 9=NULL, convert(n^2, base, 10)), `+`);
if issqr(L) then n^2 fi
end proc:
map(f, [$0..200]); # Robert Israel, Jul 06 2018
MATHEMATICA
sndQ[n_]:=Module[{s=Total[Select[IntegerDigits[n], !IntegerQ[Sqrt[#]]&]]}, IntegerQ[ Sqrt[s]]]; Select[Range[0, 200]^2, sndQ] (* Harvey P. Dale, Jun 01 2022 *)
CROSSREFS
Sequence in context: A272221 A334110 A117676 * A082875 A267430 A117756
KEYWORD
base,easy,nonn
AUTHOR
Jason Earls, Jul 07 2003
EXTENSIONS
Offset changed by Robert Israel, Jul 06 2018
STATUS
approved