This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A264270 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having index change +-(.,.) 0,0 1,0 or 1,2. 1
 442, 32000, 4861800, 600090240, 80568542340, 10563801093680, 1398071103483637, 184549492112860840, 24385615337150116761, 3221323854569532915840, 425580239886807520132066, 56223231572414176702873320 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A264272. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=2 ..0..1..2..3..4.12..6....7..8.11.12..4..5.13....0..1..2..3..4.12..6 .16..8..9.19.11..5.20....0..1.18.19..2..3..6...14.15..9.10.20..5.13 .14.15..7.17.18.10.13...14.15.16.17..9.10.20....7..8.16.17.18.19.11 CROSSREFS Cf. A264272. Sequence in context: A105922 A250086 A018237 * A098256 A225350 A171392 Adjacent sequences:  A264267 A264268 A264269 * A264271 A264272 A264273 KEYWORD nonn AUTHOR R. H. Hardin, Nov 10 2015 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 December 15 20:00 EST 2019. Contains 330000 sequences. (Running on oeis4.)