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!)
 A214942 Number of squarefree words of length n in an 8-ary alphabet. 0
 8, 56, 392, 2688, 18480, 126672, 868560, 5953248, 40806528, 279692784, 1917062784, 13139773584, 90061652352, 617293135536, 4231000268208, 28999772127648 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A214943. LINKS EXAMPLE Some solutions for n=6: ..0....0....3....2....5....2....5....5....0....5....6....7....4....4....5....2 ..5....1....5....3....2....0....3....6....7....6....7....6....7....7....4....3 ..3....2....4....1....3....7....1....5....1....3....1....3....2....3....5....7 ..0....0....0....4....4....4....0....1....7....0....6....2....3....4....1....4 ..1....7....2....6....5....0....6....4....0....2....0....1....2....5....4....7 ..3....6....4....4....2....1....0....2....7....0....1....4....7....7....7....2 CROSSREFS Sequence in context: A156088 A002914 A001666 * A010556 A010575 A162949 Adjacent sequences:  A214939 A214940 A214941 * A214943 A214944 A214945 KEYWORD nonn AUTHOR R. H. Hardin Jul 30 2012 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 February 18 15:59 EST 2020. Contains 332019 sequences. (Running on oeis4.)