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A007557 Shifts left when inverse Moebius transform applied twice.
(Formerly M2458)
+0
1
1, 1, 3, 5, 10, 12, 24, 26, 43, 52, 78, 80, 133, 135, 189, 219, 295, 297, 428, 430, 584, 642, 804, 806, 1100, 1123, 1395, 1494, 1856, 1858, 2428, 2430, 2977, 3143, 3739, 3811, 4790, 4792, 5654, 5930, 7072, 7074, 8656 (list; graph; listen)
OFFSET

1,3

LINKS

M. Bernstein and N. J. A. Sloane, Some canonical sequences of integers, Linear Alg. Applications, 226-228 (1995), 57-72; erratum 320 (2000), 210.

N. J. A. Sloane, Transforms

FORMULA

a(n+1) = Sum_{d divides n} tau(n/d)*a(d). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Jan 24 2003

CROSSREFS

Cf. A000005, A007554, A038045, A038046, A003238, A070965.

Sequence in context: A047389 A093661 A080561 this_sequence A034746 A080931 A031878

Adjacent sequences: A007554 A007555 A007556 this_sequence A007558 A007559 A007560

KEYWORD

nonn,nice,eigen

AUTHOR

njas.

EXTENSIONS

More terms from Vladeta Jovovic (vladeta(AT)Eunet.yu), Jan 24 2003

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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