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A118416
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Triangle read by rows: T(n,k) = (2*k-1)*2^(n-1), 0<k<=n.
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16
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1, 2, 6, 4, 12, 20, 8, 24, 40, 56, 16, 48, 80, 112, 144, 32, 96, 160, 224, 288, 352, 64, 192, 320, 448, 576, 704, 832, 128, 384, 640, 896, 1152, 1408, 1664, 1920, 256, 768, 1280, 1792, 2304, 2816, 3328, 3840, 4352, 512, 1536, 2560, 3584, 4608, 5632, 6656, 7680
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OFFSET
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1,2
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COMMENTS
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LINKS
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FORMULA
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T(n,k) = 2*T(n-1,k), 1 <= k < n; T(n,n) = A014480(n-1).
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EXAMPLE
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1;
2, 6;
4, 12, 20;
8, 24, 40, 56;
16, 48, 80, 112, 144;
32, 96, 160, 224, 288, 352;
64, 192, 320, 448, 576, 704, 832;
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MAPLE
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MATHEMATICA
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Flatten[Table[(2k-1)2^(n-1), {n, 10}, {k, n}]] (* Harvey P. Dale, Aug 26 2014 *)
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PROG
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(Haskell)
a118416 n k = a118416_tabl !! (n-1) !! (k-1)
a118416_row 1 = [1]
a118416_row n = (map (* 2) $ a118416_row (n-1)) ++ [a014480 (n-1)]
a118416_tabl = map a118416_row [1..]
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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