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!)
 A169999 Carryless product n X n in base 3. 8
 0, 1, 1, 9, 16, 13, 9, 13, 16, 81, 100, 91, 144, 142, 157, 117, 112, 133, 81, 91, 100, 117, 133, 112, 144, 157, 142, 729, 784, 757, 900, 961, 931, 819, 877, 853, 1296, 1369, 1333, 1278, 1249, 1237, 1413, 1381, 1456, 1053, 1117, 1099, 1008, 997, 1030, 1197, 1183, 1141 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Antti Karttunen, Table of n, a(n) for n = 0..19682 David Applegate, Marc LeBrun and N. J. A. Sloane, Carryless Arithmetic (I): The Mod 10 Version PROG (PARI) A325820sq(b, c) = fromdigits(Vec(Pol(digits(b, 3))*Pol(digits(c, 3)))%3, 3); A169999(n) = A325820sq(n, n); \\ Antti Karttunen, Jun 17 2019 CROSSREFS Main diagonal of A325820. For bases 2 through 10 see A000695, A169999, A170985-A170990 and A059729. Sequence in context: A133816 A048752 A293376 * A110151 A131746 A092095 Adjacent sequences:  A169996 A169997 A169998 * A170000 A170001 A170002 KEYWORD nonn,base,look AUTHOR N. J. A. Sloane, Aug 29 2010 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 August 10 16:56 EDT 2020. Contains 336381 sequences. (Running on oeis4.)