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Search: id:A127251
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| 1, -2, 1, 2, -2, 1, 0, 0, 0, 1, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 0, 2, -2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Product of A127248 and A127244. Row sums are A127252.
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EXAMPLE
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Triangle begins
1,
-2, 1,
2, -2, 1,
0, 0, 0, 1,
0, 0, 0, -2, 1,
0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, -2, 1,
0, 0, 0, 0, 0, 0, 2, -2, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
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CROSSREFS
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Sequence in context: A134343 A108804 A127249 this_sequence A063251 A060208 A004570
Adjacent sequences: A127248 A127249 A127250 this_sequence A127252 A127253 A127254
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KEYWORD
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sign,tabl
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Jan 10 2007
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