A067446 Smallest n-th power starting with 5.

5, 529, 512, 50625, 59049, 531441, 52523350144, 5764801, 512, 59049, 584318301411328, 531441, 549755813888, 53148384174432398229504, 51185893014090757, 5070942774902496337890625, 505447028499293771

Offset

1,1

Comments

Terms from Robert G. Wilson v.

Links

Robert Israel, Table of n, a(n) for n = 1..534

Maple

f:= proc(n) local x, y;
  for x from 2 do
    y:= x^n;
    if floor(y/10^ilog10(y)) = 5 then return x^n fi
  od
end proc:
map(f, [$1..50]); # Robert Israel, Apr 02 2025

Mathematica

a = {}; Do[k = 1; While[First[IntegerDigits[k^n]] != 5, k++ ]; a = Append[a, k^n], {n, 1, 25}]; a (* Robert G. Wilson v *)

Crossrefs

Cf. A067442, A067443, A067444, A067445.

Sequence in context: A270963 A110721 A219164 * A249895 A241325 A210821

Adjacent sequences: A067443 A067444 A067445 * A067447 A067448 A067449

Keyword

base,easy,nonn

Author

Amarnath Murthy, Feb 05 2002

Status

approved