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A101872 Number of Abelian groups of order 2n. 3
1, 2, 1, 3, 1, 2, 1, 5, 2, 2, 1, 3, 1, 2, 1, 7, 1, 4, 1, 3, 1, 2, 1, 5, 2, 2, 3, 3, 1, 2, 1, 11, 1, 2, 1, 6, 1, 2, 1, 5, 1, 2, 1, 3, 2, 2, 1, 7, 2, 4, 1, 3, 1, 6, 1, 5, 1, 2, 1, 3, 1, 2, 2, 15, 1, 2, 1, 3, 1, 2, 1, 10, 1, 2, 2, 3, 1, 2, 1, 7, 5, 2, 1, 3, 1, 2, 1, 5, 1, 4, 1, 3, 1, 2, 1, 11, 1, 4, 2, 6, 1, 2, 1, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..104.

CROSSREFS

Bisection of A000688.

Sequence in context: A059127 A105609 A206778 * A174892 A069929 A101312

Adjacent sequences:  A101869 A101870 A101871 * A101873 A101874 A101875

KEYWORD

nonn,mult,easy

AUTHOR

N. J. A. Sloane, Jan 28 2005

EXTENSIONS

More terms from Joshua Zucker, May 10 2006

STATUS

approved

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Last modified May 24 04:20 EDT 2013. Contains 225613 sequences.