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Search: id:A118413
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| A118413 |
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Triangle read by rows: T(n,k) = (2*n-1)*2^(k-1), 0<=k<=n. |
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+0
15
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| 1, 3, 6, 5, 10, 20, 7, 14, 28, 56, 9, 18, 36, 72, 144, 11, 22, 44, 88, 176, 352, 13, 26, 52, 104, 208, 416, 832, 15, 30, 60, 120, 240, 480, 960, 1920, 17, 34, 68, 136, 272, 544, 1088, 2176, 4352, 19, 38, 76, 152, 304, 608, 1216, 2432, 4864, 9728, 21, 42, 84, 168
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OFFSET
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1,2
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COMMENT
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Central terms give A118415; row sums give A118414;
T(n,1) = A005408(n-1);
T(n,2) = A016825(n-1) for n>1;
T(n,3) = A017113(n-1) for n>2;
T(n,4) = A051062(n-1) for n>3;
T(n,n-2) = A052951(n-1) for n>2;
T(n,n) = A014480(n-1) = A118416(n,n);
A001511(T(n,k)) = A002260(n,k);
A003602(T(n,k)) = A002024(n,k).
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CROSSREFS
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Cf. A118416, A117303.
Sequence in context: A046083 A123089 A127780 this_sequence A096620 A093419 A160049
Adjacent sequences: A118410 A118411 A118412 this_sequence A118414 A118415 A118416
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KEYWORD
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nonn,tabl
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AUTHOR
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Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 27 2006
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