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A372304
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Binomial transform of the Gray code sequence.
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2
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0, 1, 5, 14, 36, 92, 228, 536, 1200, 2608, 5624, 12224, 26920, 59824, 133024, 293504, 638816, 1367488, 2877728, 5962112, 12198000, 24748192, 50041312, 101366272, 206655440, 425423136, 885598720, 1863228544, 3953671808, 8436151552, 18042976640, 38567833600
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OFFSET
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0,3
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COMMENTS
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Also second binomial transform of A109629.
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LINKS
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FORMULA
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a(n) = Sum_{k=0..n} binomial(n,k) * A003188(k).
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MAPLE
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g:= proc(n) g(n):= Bits[Xor](n, iquo(n, 2)) end:
a:= n-> add(binomial(n, k)*g(k), k=0..n):
seq(a(n), n=0..40);
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PROG
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(Python)
from math import comb
def A372304(n): return sum(comb(n, k)*(k^k>>1) for k in range(n+1)) # Chai Wah Wu, May 02 2024
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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