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 A006169 Number of factorization patterns of polynomials of degree n over F_4. (Formerly M2475) 3
 1, 3, 5, 11, 16, 32, 47, 84, 124, 206, 299, 481, 687, 1058, 1506, 2255, 3163, 4638, 6444, 9258, 12757, 18021, 24604, 34307, 46445, 63926, 85948, 117021, 156156, 210617, 279202, 373252, 491801, 652264, 854343, 1125152, 1465587, 1917282, 2484733 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 REFERENCES R. A. Hultquist, G. L. Mullen and H. Niederreiter, Association schemes and derived PBIB designs of prime power order, Ars. Combin., 25 (1988), 65-82. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS T. D. Noe, Table of n, a(n) for n=1..1000 R. A. Hultquist, G. L. Mullen and H. Niederreiter, Association schemes and derived PBIB designs of prime power order, Ars. Combin., 25 (1988), 65-82. (Annotated scanned copy) FORMULA Euler transform of sequence b(n) = sum_{d|n, A027377(d)>=n/d} 1. - Franklin T. Adams-Watters, Jun 19 2006 CROSSREFS Cf. A006167-A006171. Cf. A027377. Sequence in context: A219039 A074820 A327043 * A323582 A088328 A102643 Adjacent sequences: A006166 A006167 A006168 * A006170 A006171 A006172 KEYWORD nonn AUTHOR N. J. A. Sloane. EXTENSIONS More terms from Franklin T. Adams-Watters, Jun 19 2006 STATUS approved

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Last modified September 18 01:35 EDT 2024. Contains 375995 sequences. (Running on oeis4.)