The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A034360 Number of binary [ n,6 ] codes. 3
 0, 0, 0, 0, 0, 1, 7, 32, 131, 516, 1988, 7664, 29765, 117169, 467266, 1880517, 7588675, 30491836, 121191234, 473940269, 1816579108, 6806904522, 24897540538, 88831250408, 309108741706, 1049278764758, 3476233500031, 11246972937210, 35561409388625, 109967835029368, 332834886787933, 986732945823099 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,7 LINKS H. Fripertinger, Isometry Classes of Codes. Harald Fripertinger, Wnk2: Number of the isometry classes of all binary (n,k)-codes. [See column k=6.] H. Fripertinger and A. Kerber, Isometry classes of indecomposable linear codes, preprint, 1995. [We have a(n) = W_{n,6,2}; see p. 4 of the preprint.] H. Fripertinger and A. Kerber, Isometry classes of indecomposable linear codes. In: G. Cohen, M. Giusti, T. Mora (eds), Applied Algebra, Algebraic Algorithms and Error-Correcting Codes, 11th International Symposium, AAECC 1995, Lect. Notes Comp. Sci. 948 (1995), pp. 194-204. [We have a(n) = W_{n,6,2}; see p. 197.] Petros Hadjicostas, Generating function for a(n). CROSSREFS Cf. A034253, A034254. Column k=6 of both A034356 and A076831 (which are the same except for column k=0). First differences give A034347. Sequence in context: A178851 A213163 A249999 * A268745 A199845 A188179 Adjacent sequences:  A034357 A034358 A034359 * A034361 A034362 A034363 KEYWORD nonn AUTHOR EXTENSIONS More terms from Joerg Arndt, Oct 09 2019 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 17 16:03 EDT 2021. Contains 343980 sequences. (Running on oeis4.)