A053948 Numbers k such that k^2 contains only digits {3,6,9}.

3, 6, 63, 264, 306, 1914, 3114, 31086, 81813, 190614, 251787, 310956, 184372811544, 631933060806, 3152295978114, 629836198308687, 2576231033241456, 18430047920827535573187, 31047286456844613647179386

Offset

1,1

Links

Table of n, a(n) for n=1..19.

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

Author?, Source, (txt)

H. Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A053949.

Sequence in context: A137138 A215492 A125817 * A270745 A137091 A137135

Adjacent sequences: A053945 A053946 A053947 * A053949 A053950 A053951

Keyword

nonn,base,more

Author

Patrick De Geest, Mar 15 2000

Extensions

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005

One more term from Jon E. Schoenfield, Sep 04 2006

Three more terms from Mishima's webpage added by Max Alekseyev, Jun 17 2011

One more term from Zhao Hui Du, Mar 01 2024

Status

approved