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A053908
Numbers k such that k^2 contains only digits {1,6,8}.
2
1, 4, 9, 41, 109, 1291, 28604, 78541, 81619, 782104, 1054119, 3341881, 4345881, 25823791, 29439546, 129105041, 817851954, 931064546, 2486185454, 2609955204, 24862847104, 786680914454
OFFSET
1,2
CROSSREFS
Cf. A053909.
Sequence in context: A013459 A041229 A042887 * A149165 A083859 A070761
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
STATUS
approved