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A203770
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Vandermonde sequence using x^4 + y^4 applied to (1,1,2,2,...,floor(n/2)).
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3
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OFFSET
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1,2
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COMMENTS
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See A093883 for a discussion and guide to related sequences.
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LINKS
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MATHEMATICA
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f[j_] := Floor[(j + 1)/2]; z = 16;
u := Product[f[j]^4 + f[k]^4, {j, 1, k - 1}]
v[n_] := Product[u, {k, 2, n}]
Table[v[n], {n, 1, z}] (* A203770 *)
Table[v[n + 1]/v[n], {n, 1, z}] (* A203771 *)
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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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