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Search: id:A085611
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| 1, 6, 12, 32, 57, 73, 144, 210, 255, 394, 516, 520, 833, 1032, 1182, 1518, 1809, 1927, 2500, 2904, 3205, 3836, 4368, 4768, 5577, 6258, 6550, 7780, 8625, 9265, 10496, 11526, 12403, 13782, 15012, 15996, 17689, 19140, 20218
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OFFSET
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8,2
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COMMENT
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If we define b(n) by b(n)=local(nr,fn,cn); nr=0; fn=floor(n/2); cn=ceil(n/2); forstep (i=n,4,-2,nr=nr+(i-2)*fn+(i-4)*cn); nr then a(n) is given by (A007678(i*2)-b(i*2))/2i
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CROSSREFS
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Cf. A007678.
Sequence in context: A152522 A096356 A065992 this_sequence A122608 A166636 A167338
Adjacent sequences: A085608 A085609 A085610 this_sequence A085612 A085613 A085614
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KEYWORD
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nonn
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AUTHOR
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Jon Perry (perry(AT)globalnet.co.uk), Jul 08 2003
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EXTENSIONS
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The last term seemed to be corrupted and has now been deleted. - N. J. A. Sloane (njas(AT)research.att.com), Oct 29 2006
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