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A053925
Squares composed of digits {2,4,9}.
2
4, 9, 49, 29929, 44944, 94249, 2424249, 9229444, 22924944, 42994249, 92294449, 4924249929, 49429294929, 422224444944, 49222249444449, 294942222949924, 499494249999424, 924294494492944, 2292224242242992929, 29924229429994922929, 4499942944492299999249
OFFSET
1,1
FORMULA
a(n) = A053924(n)^2. - Andrew Howroyd, Oct 18 2024
CROSSREFS
Cf. A053924.
Sequence in context: A086541 A053965 A058444 * A053943 A053955 A038340
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005
a(20) onwwards added using A053924 by Andrew Howroyd, Oct 18 2024
STATUS
approved