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Search: id:A056577
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A056577 Difference between 3^n and highest power of 2 less than or equal to 3^n. +0
5
0, 1, 1, 11, 17, 115, 217, 139, 2465, 3299, 26281, 46075, 7153, 545747, 588665, 5960299, 9492289, 62031299, 118985033, 88519643, 1339300753, 1870418611, 14201190425, 25423702091, 7551629537 (list; graph; listen)
OFFSET

0,4

FORMULA

a(n) =3^n-2^floor[log2(3^n)] =A000244(n)-2^A056576(n)

EXAMPLE

a(3)=11 because 3^3=27 and 27-16=11

CROSSREFS

Cf. A063005.

Sequence in context: A136721 A107172 A090286 this_sequence A166655 A146446 A132092

Adjacent sequences: A056574 A056575 A056576 this_sequence A056578 A056579 A056580

KEYWORD

nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), Jun 29 2000

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.


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