Search: id:A079312 Results 1-1 of 1 results found. %I A079312 %S A079312 0,0,32,0,328,2976,25512,124352,758752,4852448,26735408,145945312,805129880, %T A079312 4334341216,22824469832,119276925152,617722010896,3163151197504,16059782780784, %U A079312 80965219241952,405344545960912 %N A079312 Number of open knight's tours on a 4 X n chessboard; there are no closed knight's tours on a 4 X n chessboard. %C A079312 See A079137, which is the main entry for this problem. %C A079312 This sequence is known to be given by a linear recurrence relation with constant coefficients, although as far as I know this recurrence has not yet been explicitly computed. %e A079312 There are 2976 ways to start with a knight on some square of a 4 X 6 chessboard and make 23 moves such that each square is visited exactly once. %Y A079312 Equals 4*A079137(n). Cf. A070030. %Y A079312 Sequence in context: A091308 A023927 A057376 this_sequence A062543 A086820 A014777 %Y A079312 Adjacent sequences: A079309 A079310 A079311 this_sequence A079313 A079314 A079315 %K A079312 nonn %O A079312 1,3 %A A079312 Alex Healy (ahealy(AT)fas.harvard.edu), Feb 11 2003 Search completed in 0.001 seconds