A053907 Squares composed of digits {1,6,7}.

1, 16, 676, 17161, 76176, 776161, 11771761, 6617171716, 6661661161, 16671716161, 17676766116, 1671671667166667776

Offset

1,2

Links

Table of n, a(n) for n=1..12.

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

Crossrefs

Cf. A053906.

Sequence in context: A264533 A253126 A014733 * A222139 A036513 A123824

Adjacent sequences: A053904 A053905 A053906 * A053908 A053909 A053910

Keyword

nonn,base,more

Author

Patrick De Geest, Mar 15 2000

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

Status

approved