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A113049
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Triangle of sums of Jacobsthal numbers related to binomial(4n,n)/(3n+1) mod 4.
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1
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3, 11, 13, 43, 45, 53, 171, 173, 181, 213, 683, 685, 693, 725, 853, 2731, 2733, 2741, 2773, 2901, 3413, 10923, 10925, 10933, 10965, 11093, 11605, 13653, 43691, 43693, 43701, 43733, 43861, 44373, 46421, 54613, 174763, 174765, 174773, 174805, 174933
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OFFSET
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0,1
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COMMENTS
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LINKS
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FORMULA
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T(n, k)=if(k<=n, J(2n+3)+2J(2k), 0), J(n)=A001045(n).
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EXAMPLE
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Rows begin
3;
11, 13;
43, 45, 53;
171, 173, 181, 213;
683, 685, 693, 725, 683;
2731,2733, 2741, 2773, 2901, 3413;
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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