A053892 Numbers k such that k^2 contains only digits {1,3,6}.

1, 4, 6, 19, 56, 369, 796, 1146, 1156, 3656, 8131, 19056, 40204, 81619, 258131, 5624381, 24762131, 362789631, 1079982019, 11666754546, 562726517354, 3337114272296, 5624644998854, 18266544874814631, 11537606482136410218512760694

Offset

1,2

Links

Table of n, a(n) for n=1..25.

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

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, May 30 2009]

Crossrefs

Cf. A053893.

Sequence in context: A110391 A197460 A001683 * A013126 A012969 A057789

Adjacent sequences: A053889 A053890 A053891 * A053893 A053894 A053895

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

Two more terms from Jon E. Schoenfield, Sep 03 2006

One more term from Mishima's webpage added by Max Alekseyev, May 30 2009

a(25) from Zhao Hui Du, Mar 09 2024

Status

approved