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A050360 Abelian groups (factorizations into prime powers >1) indexed by prime signatures. A000688(A025487). 6
1, 1, 2, 1, 3, 2, 5, 3, 1, 7, 4, 5, 2, 11, 6, 7, 3, 15, 10, 4, 11, 1, 9, 5, 22, 14, 6, 15, 2, 15, 7, 30, 22, 10, 22, 3, 21, 8, 11, 42, 9, 30, 4, 25, 14, 30, 5, 33, 12, 15, 56, 15, 44, 1, 6, 35, 22, 42, 7, 45, 20, 22, 77, 21, 60, 2, 10, 55, 18, 30, 56, 8, 25, 11, 66, 28, 9, 30, 49, 101 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Index entries for sequences related to enumerating groups.

PROG

(Haskell)

a050360 = a000688 . a025487  -- Reinhard Zumkeller, Aug 28 2014

CROSSREFS

Cf. A000041, A000688, A000961, A050361-A050364.

Cf. A025487.

Sequence in context: A134735 A240867 A242363 * A175003 A176431 A045747

Adjacent sequences:  A050357 A050358 A050359 * A050361 A050362 A050363

KEYWORD

nonn

AUTHOR

Christian G. Bower, Oct 15 1999

EXTENSIONS

More terms from David Wasserman, Feb 14 2002

STATUS

approved

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Last modified May 26 02:35 EDT 2019. Contains 323579 sequences. (Running on oeis4.)