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 A141660 Triangle read by rows: T(n,k) = 2^k*A123125(n,k). 0
 1, 0, 2, 0, 2, 4, 0, 2, 16, 8, 0, 2, 44, 88, 16, 0, 2, 104, 528, 416, 32, 0, 2, 228, 2416, 4832, 1824, 64, 0, 2, 480, 9528, 38656, 38112, 7680, 128, 0, 2, 988, 34344, 249904, 499808, 274752, 31616, 256, 0, 2, 2008, 116864, 1411744, 4998080, 5646976, 1869824 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Triangle T(n,k), 0 <= k <= n, read by rows given by [0,1,0,2,0,3,0,4,0,5,0,6,...] DELTA [2,0,4,0,6,0,8,0,10,0,...] where DELTA is the operator defined in A084938. - Philippe Deléham, Sep 15 2008 LINKS Table of n, a(n) for n=1..53. FORMULA T(n,k) = 2^k*A123125(n,k). - Philippe Deléham, Sep 15 2008 Sum_{k=0..n} T(n,k) = A000629(n). - Philippe Deléham, Nov 19 2011 EXAMPLE {1}, {0, 2}, {0, 2, 4}, {0, 2, 16, 8}, {0, 2, 44, 88, 16}, {0, 2, 104, 528, 416, 32}, {0, 2, 228, 2416, 4832, 1824, 64}, {0, 2, 480, 9528, 38656, 38112, 7680, 128}, ... CROSSREFS Cf. A000629, A123125. Sequence in context: A221683 A332760 A199335 * A368500 A209699 A115273 Adjacent sequences: A141657 A141658 A141659 * A141661 A141662 A141663 KEYWORD nonn,easy,tabl AUTHOR Roger L. Bagula and Gary W. Adamson, Sep 04 2008 EXTENSIONS Example corrected by Philippe Deléham, Oct 16 2008 New name using formula by Philippe Deléham, Joerg Arndt, Jan 25 2020 STATUS approved

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Last modified July 21 22:27 EDT 2024. Contains 374478 sequences. (Running on oeis4.)