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A276274
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a(n) = (2*n+1)^(2*(2*n+1)^2).
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2
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OFFSET
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0,2
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COMMENTS
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All terms are odd squares and are of the form k^k, where k = (2n+1)^2.
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LINKS
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EXAMPLE
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For n = 1, k = 3^2 = 9 and so a(1) = 3^(2*3^2) = 3^18 = 387420489.
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MAPLE
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MATHEMATICA
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Table[{x, (2x+1)^(2(2x+1)^2), {x, 0, 20}]
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PROG
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CROSSREFS
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Subsequence of A000312, containing only the odd squares.
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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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