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Search: id:A048494
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| A048494 |
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Array T(k,n) read by antidiagonals: T(n,k) = 2^(n-1) * ((k+1)*n - 2k) + k + 1. |
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+0
12
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| 1, 2, 1, 5, 2, 1, 13, 6, 2, 1, 33, 18, 7, 2, 1, 81, 50, 23, 8, 2, 1, 193, 130, 67, 28, 9, 2, 1, 449, 322, 179, 84, 33, 10, 2, 1, 1025, 770, 451, 228, 101, 38, 11, 2, 1, 2305, 1794, 1091, 580, 277, 118, 43, 12, 2, 1, 5121, 4098, 2563, 1412, 709
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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n-th difference of (T(k,n),T(k,n-1),...,T(k,0)) is 1+(n-1)*(k+1), for n=1,2,3,...; k=0,1,2,...
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EXAMPLE
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Diagonals: {1}; {2,1}; {5,2,1}; ...
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CROSSREFS
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Row 1 = (1, 2, 5, 13, 33, ...) = A005183.
Sequence in context: A126075 A134032 A137151 this_sequence A047848 A110874 A010253
Adjacent sequences: A048491 A048492 A048493 this_sequence A048495 A048496 A048497
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KEYWORD
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nonn,tabl
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AUTHOR
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Clark Kimberling (ck6(AT)evansville.edu)
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EXTENSIONS
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Formula from Ralf Stephan (ralf(AT)ark.in-berlin.de), Jan 15 2004
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