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A214441
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Catalan numbers at square positions: a(n) = A000108(n^2).
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2
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1, 1, 14, 4862, 35357670, 4861946401452, 11959798385860453492, 509552245179617138054608572, 368479169875816659479009042713546950, 4462290049988320482463241297506133183499654740, 896519947090131496687170070074100632420837521538745909320
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) = binomial(2*n^2, n^2) / (n^2 + 1).
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MATHEMATICA
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PROG
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(PARI) {a(n)=binomial(2*n^2, n^2)/(n^2+1)}
for(n=0, 15, print1(a(n), ", "))
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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