A295994 Numbers n such that there are precisely 11 groups of orders n and n + 1.

21483, 26091, 31436, 39195, 41643, 43371, 43803

Offset: 1

Author

Muniru A Asiru, Dec 02 2017

Keywords

• nonn
• more

Comments

Equivalently, lower member of consecutive terms of A249554.

Examples

			21483 is in the sequence because A000001(21483) = A000001(21484) = 11, 26091 is in the sequence because A000001(26091) = A000001(26092) = 11 and 43803 is in the sequence because A000001(43803) = A000001(43804) = 11.
		

Links

• H. U. Besche, B. Eick and E. A. O'Brien. A Millennium Project: Constructing Small Groups, Internat. J. Algebra and Computation, 12 (2002), 623-644.
• Gordon Royle, Numbers of Small Groups
• Index entries for sequences related to groups

Crossrefs

Cf. A000001, A249554.

Formula

Sequence is { n | A000001(n) = 11, A000001(n+1) = 11 }.