

A158763


Number of equivalence classes of nearnormal sequences NN(2n).


0



1, 2, 2, 3, 8, 14, 11, 24, 20, 18, 32, 12, 3, 20, 9, 8, 5, 1, 1, 1
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OFFSET

1,2


COMMENTS

Number of rows of Table 1 of Djokovic, pp.914, where "n" in the table is 2n as indexed in this sequence.


REFERENCES

D. Z. Djokovic, Aperiodic complementary quadruples of binary sequences, JCMCC 27 (1998), 331. Correction: ibid 30 (1999), p. 254.


LINKS

Table of n, a(n) for n=1..20.
Dragomir Z. Djokovic, Classification of nearnormal sequences, arXiv:0903.4390 [math.CO], 2009.
Dragomir Z. Djokovic, Hadamard matrices of small order and Yang conjecture, arXiv:0912.5091 [math.CO], 2009.
Dragomir Z. Djokovic, A new Yang number and consequences, arXiv:1007.5434 [math.CO], 2010; Designs, Codes and Cryptography 54:3 (2010).
C. Koukouvinos, S. Kounias, J. Seberry, C.H. Yang and J. Yang, Multiplication of sequences with zero autocorrelation, Austral. J. Combin. 10 (1994), 515.
C. H. Yang, On composition of foursymbol deltacodes and Hadamard matrices, Proc. Amer. Math. Soc. 107 (1989), 763776.


CROSSREFS

Sequence in context: A227380 A159789 A153932 * A001131 A019177 A153941
Adjacent sequences: A158760 A158761 A158762 * A158764 A158765 A158766


KEYWORD

nonn,more


AUTHOR

Jonathan Vos Post, Mar 26 2009


EXTENSIONS

5 more terms from the second Djokovic link, sent by Jonathan Vos Post and William P. Orrick, Jan 02 2010


STATUS

approved



