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A246735 Number of length n+4 0..6 arrays with no pair in any consecutive five terms totalling exactly 6. 1
3876, 15960, 66378, 276762, 1152576, 4791012, 19906740, 82727094, 343911336, 1430080296, 5946396012, 24722787264, 102780120750, 427285990662, 1776417823830, 7385542897866, 30705819911322, 127659940718424 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A246737.
LINKS
FORMULA
Empirical: a(n) = 3*a(n-1) +a(n-2) +a(n-3) +5*a(n-4) +202*a(n-5) +94*a(n-6) +129*a(n-7) +278*a(n-8) +35*a(n-9) -197*a(n-10) -164*a(n-11) +272*a(n-12) +119*a(n-13) -9*a(n-14) +17*a(n-15) +158*a(n-16) +27*a(n-17) -19*a(n-18) -18*a(n-19) -a(n-20) -2*a(n-21) +2*a(n-22) +a(n-23).
EXAMPLE
Some solutions for n=3
..5....2....3....0....3....2....3....6....4....4....5....2....0....4....2....0
..2....0....0....1....6....0....6....4....0....3....5....0....5....5....3....0
..2....2....5....0....1....1....6....1....5....4....2....1....0....6....5....4
..5....0....5....1....1....3....5....4....5....1....2....1....2....5....2....5
..2....0....0....4....6....2....2....6....3....1....0....3....0....5....2....3
..2....2....4....1....3....2....3....1....0....4....2....4....0....6....0....0
..2....5....0....3....2....2....2....4....0....1....5....0....3....2....3....4
CROSSREFS
Cf. A246737.
Sequence in context: A035781 A108005 A065696 * A283026 A014891 A253484
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 02 2014
STATUS
approved

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Last modified May 29 20:04 EDT 2024. Contains 372952 sequences. (Running on oeis4.)