A264882 Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 0,-1 -2,0 or 1,1.
3, 0, 56, 36, 3613, 22400, 356692, 3303808, 37498613, 378705540, 3968118198, 40855251236, 419847061269, 4338625113664, 44432810271640, 458593963707000, 4699321892473274, 48406074363574612, 496575268524702592
Offset: 1
Keywords
Examples
Some solutions for n=4 .10..2..3..4.14....1..2..3..4.14....1..2..3..4.14...10..2.12..4.14 .15..0..1..9.19....6..0.17..9.19....6..0..8..9.19....6..0..1..9..3 .20..5..6..7..8...20..5.22..7..8...11..5.13..7.24...20..5.22..7..8 .25.17.11.12.13...25.10.11.12.13...25.10.27.12.29...25.17.11.19.13 .21.22.16.24.18...21.15.16.24.18...21.15.16.17.18...21.15.16.24.18 .26.27.28.29.23...26.27.28.29.23...26.20.28.22.23...26.27.28.29.23
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A264878.
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