A249307 revision #6
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A249307
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Triangle read by rows: A249095(n,k) * 2^k, k = 0 .. 2*n+1.
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5
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1, 1, 2, 4, 1, 2, 8, 8, 16, 1, 2, 12, 16, 48, 32, 64, 1, 2, 16, 24, 96, 96, 256, 128, 256, 1, 2, 20, 32, 160, 192, 640, 512, 1280, 512, 1024, 1, 2, 24, 40, 240, 320, 1280, 1280, 3840, 2560, 6144, 2048, 4096, 1, 2, 28, 48, 336, 480, 2240, 2560, 8960, 7680
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OFFSET
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0,3
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COMMENTS
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Length of row n = 2*n+1;
for n > 0: sum of row n = 7*5^(n-1), cf. A005055.
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LINKS
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PROG
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(Haskell)
a249307 n k = a249307_tabf !! n !! k
a249307_row n = a249307_tabf !! n
a249307_tabf = map (zipWith (*) a000079_list) a249095_tabf
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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STATUS
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editing
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