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 A098885 Number of nonisomorphic p^m-groups (i.e., groups of prime power orders). 3
 1, 1, 1, 2, 1, 1, 5, 2, 1, 1, 14, 1, 1, 1, 2, 5, 1, 1, 51, 1, 1, 1, 1, 2, 1, 1, 1, 267, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 1, 1, 2, 5, 1, 2328, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 67, 1, 56092, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Klaus Brockhaus, Table of n, a(n) for n=1..340 H. U. Besche, B. Eick and E. A. O'Brien, Number of isomorphism types of finite groups of given order FORMULA a(n) = A000001(A000961(n)). PROG (MAGMA) D := SmallGroupDatabase(); [ NumberOfSmallGroups(D, n) : n in [1..410] | n eq 1 or IsPrimePower(n) ]; /* Klaus Brockhaus, Mar 15 2007 */ CROSSREFS Cf. A000001, A000961, A098886, A128604. Sequence in context: A162470 A174004 A128604 * A106270 A047888 A128704 Adjacent sequences:  A098882 A098883 A098884 * A098886 A098887 A098888 KEYWORD nonn AUTHOR Lekraj Beedassy, Oct 14 2004 EXTENSIONS More terms from Klaus Brockhaus, Mar 15 2007 STATUS approved

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