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Search: id:A049069
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| A049069 |
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Array T by antidiagonals: T(k,n)=k*n*2^(n-1)+1, n >= 0, k >= 1. |
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+0
3
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| 1, 1, 2, 1, 3, 5, 1, 4, 9, 13, 1, 5, 13, 25, 33, 1, 6, 17, 37, 65, 81, 1, 7, 21, 49, 97, 161, 193, 1, 8, 25, 61, 129, 241, 385, 449, 1, 9, 29, 73, 161, 321, 577, 897, 1025, 1, 10, 33, 85, 193, 401, 769, 1345, 2049, 2305, 1, 11, 37, 97, 225, 481, 961, 1793, 3073
(list; table; graph; listen)
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OFFSET
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0,3
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EXAMPLE
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Antidiagonals: {1}; {1,2}; {1,3,5}; ...
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PROGRAM
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(PARI) T(k, n)=k*n*2^(n-1)+1
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CROSSREFS
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Transpose of the array in A048472.
Row 1 = (1, 2, 5, 13, 33, ...) = A005183.
Row 2 = (1, 3, 9, 25, 65, ...) = A002064.
Cf. A049513.
Essentially the same as A049513.
Sequence in context: A076110 A117584 A047997 this_sequence A030237 A118243 A134081
Adjacent sequences: A049066 A049067 A049068 this_sequence A049070 A049071 A049072
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KEYWORD
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nonn,tabl,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Clark Kimberling (ck6(AT)evansville.edu), Michael Somos
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