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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..45.

FORMULA

a(n) = floor(A000079(n) / A000578(n)).

PROG

(Python)

for n in range(1, 100):  print str(2**n // n**3)+', ',

CROSSREFS

Cf. A000079, A000578, A060505, A062278.

Cf. A230664, A233442.

Sequence in context: A294068 A181011 A084863 * A255365 A256505 A073346

Adjacent sequences:  A233438 A233439 A233440 * A233442 A233443 A233444

KEYWORD

nonn

AUTHOR

Alex Ratushnyak, Dec 09 2013

STATUS

approved

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Last modified October 15 04:33 EDT 2019. Contains 328026 sequences. (Running on oeis4.)