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 A238259 Area of smallest square containing n dominoes with short side lengths 1, 2, ..., n. 1
 0, 4, 16, 36, 64, 121, 196, 289, 441, 576, 784, 1024, 1369, 1681, 2116, 2500, 3025, 3600, 4356, 5041 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS a(n) >= ceiling(n*(n + 1)*(2n + 1)/3). LINKS Erich Friedman, Dominoes in Squares FORMULA a(n) = A237886(n)^2. EXAMPLE Illustration: . . - -    a - - -    a a - - - -    - - - - a a b b . a a    a - - -    b b b b - -    c c c c c c b b .        b b b b    b b b b - -    c c c c c c b b .        b b b b    c c c c c c    c c c c c c b b .                   c c c c c c    d d d d d d d d .                   c c c c c c    d d d d d d d d .                                  d d d d d d d d .                                  d d d d d d d d . .  4        16           36               64 . CROSSREFS Cf. A237986. Sequence in context: A016742 A221285 A121317 * A063755 A166721 A085040 Adjacent sequences:  A238256 A238257 A238258 * A238260 A238261 A238262 KEYWORD nonn,hard,more AUTHOR Ivan Panchenko, Feb 21 2014 STATUS approved

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Last modified April 10 08:09 EDT 2021. Contains 342845 sequences. (Running on oeis4.)