G.f.: square root of weight enumerator of Kerdock code of length 256 (cf. A028240).
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16256, 255, 16256, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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Sat May 2 16:12:32 CEST 2009 [seqfan] Re: OEIS duplicate hunt