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A233441
Floor(2^n / n^3).
2
2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 5, 9, 16, 26, 44, 76, 131, 226, 393, 689, 1213, 2147, 3818, 6818, 12228, 22012, 39768, 72084, 131072, 239027, 437102, 801393, 1472896, 2713342, 5009438, 9267786, 17179869, 31906432, 59362467, 110632938, 206519839, 386111079
OFFSET
1,1
FORMULA
a(n) = floor(A000079(n) / A000578(n)).
PROG
(Python)
for n in range(1, 100): print str(2**n // n**3)+', ',
CROSSREFS
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, Dec 09 2013
STATUS
approved