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 A261717 Arrange the 26 sporadic simple groups in increasing order; a(n) = number of sporadic simple groups of which the n-th largest sporadic simple group is a subquotient. 2
 19, 12, 2, 16, 4, 10, 7, 1, 5, 7, 3, 1, 3, 1, 3, 4, 5, 3, 1, 3, 4, 2, 1, 2, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The sum of all elements of the sequence is the same as that of A263447. REFERENCES J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985. Page 238. LINKS Wikipedia, Sporadic group EXAMPLE The sporadic group Fi_23 is a subquotient of the sporadic groups Fi_23 (itself), Fi_24, the Baby Monster and the Monster, so a(21) = 4. CROSSREFS Cf. A001228, A263447. Sequence in context: A166525 A083156 A040344 * A323832 A306384 A196188 Adjacent sequences:  A261714 A261715 A261716 * A261718 A261719 A261720 KEYWORD nonn,fini,full AUTHOR Sven Simon, Charles R Greathouse IV, Franklin T. Adams-Watters, Oct 24 2015 STATUS approved

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Last modified December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)