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Search: id:A137444
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| 1, 4, 6, 4, -4, -16, -24, -16, 16, 64, 96, 64, -64, -256, -384, -256, 256, 1024, 1536, 1024
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Sequence opposite to its second differences.
Degenerate case of a(n)=4a(n-1)-6a(n-2)+4a(n-3), n > 3 (for which the sequence is identical to its fourth differences).
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CROSSREFS
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Sequence in context: A001482 A078385 A137429 this_sequence A132024 A092039 A123999
Adjacent sequences: A137441 A137442 A137443 this_sequence A137445 A137446 A137447
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KEYWORD
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sign
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Apr 18 2008
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