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Search: id:A083053
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| 1, 6, 16, 35, 66, 114, 185, 290, 443, 661, 976, 1425, 2064, 2972, 4259, 6083, 8667, 12327, 17506, 24834, 35203, 49869, 70615, 99959, 141462, 200159, 283173, 400577, 566616, 801435, 1133522, 1603168, 2267350, 3206653, 4535033, 6413648, 9070416
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OFFSET
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0,2
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FORMULA
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a(n)=sum(k=0..n, T(k, n-k)), where T(n, 0)=floor(n*x/(x-1))+1, T(n, k+1)=ceil(x*T(n, k)), for n>=0, k>=0, with x=sqrt(2).
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CROSSREFS
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Cf. A083044, A083047, A083050, A083052.
Sequence in context: A099399 A118014 A131820 this_sequence A083046 A160997 A098943
Adjacent sequences: A083050 A083051 A083052 this_sequence A083054 A083055 A083056
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Apr 18 2003
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