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A245235
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Repeat 2^(n*(n+1)/2) n+1 times.
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0
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1, 2, 2, 8, 8, 8, 64, 64, 64, 64, 1024, 1024, 1024, 1024, 1024, 32768, 32768, 32768, 32768, 32768, 32768, 2097152, 2097152, 2097152, 2097152, 2097152, 2097152, 2097152, 268435456, 268435456, 268435456, 268435456, 268435456, 268435456, 268435456, 268435456
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OFFSET
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0,2
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COMMENTS
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For a(n), the successive exponents of 2 are 0, 1, 1, 3, 3, 3,... = A057944(n).
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LINKS
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FORMULA
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T(n, k) = 2^(n*(n+1)/2), 0 <= k <= n. - Michel Marcus, Jul 17 2014
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EXAMPLE
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n+1 times repeated 2^(n*(n+1)/2)= 1, 2, 8, 64, 1024,... = A139685(n).
By the formula: a(0)=1/1=1, a(1)=2/1=2, a(2)=4/2=2, a(3)=8/1=8, a(4)=16/2=8,...
As triangle:
1,
2, 2,
8, 8, 8,
64, 64, 64, 64,
1024, 1024, 1024, 1024, 1024,
etc.
Row sums: 1, 4, 24, 256,... = A095340.
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MATHEMATICA
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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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