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A108085
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Triangle, read by rows, where T(0,0) = 1, T(n,k) = 2^n*T(n-1,k) - T(n-1,k-1).
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0
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1, 2, -1, 8, -6, 1, 64, -56, 14, -1, 1024, -960, 280, -30, 1, 32768, -31744, 9920, -1240, 62, -1, 2097152, -2064384, 666624, -89280, 5208, -126, 1, 268435456, -266338304, 87392256, -12094464, 755904, -21336, 254, -1, 68719476736, -68451041280, 22638755840, -3183575040, 205605888, -6217920
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| For n>0, n-th row sum = Product(2^i - 1), i=1..n (i.e. A005329(n)).
Triangle T(n,k), 0<=k<=n, read by rows given by [2, 2, 8, 12, 32, 56, 128, 240, 512, ...] DELTA [[ -1, 0, -2, 0, -4, 0, -8, 0, -16, 0, -32, 0, ...]= A014236(first zero omitted)DELTA -A077957 where DELTA is the operator defined in A084938 . - Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Aug 23 2006
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CROSSREFS
| Sequence in context: A114193 A039683 A108084 * A195698 A193908 A193904
Adjacent sequences: A108082 A108083 A108084 * A108086 A108087 A108088
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KEYWORD
| sign
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AUTHOR
| Gerald McGarvey (gerald.mcgarvey(AT)comcast.net), Jun 05 2005
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