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A249197
T(n,k)=Number of length n+6 0..k arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four
15
126, 1792, 250, 14126, 4586, 496, 66948, 49730, 11874, 984, 240870, 290032, 175616, 30876, 1952, 708106, 1249890, 1257084, 620648, 80354, 3872, 1809164, 4264120, 6487112, 5448778, 2194096, 208876, 7680, 4132884, 12523980, 25682744, 33673760
OFFSET
1,1
COMMENTS
Table starts
......126.......1792.........14126..........66948..........240870
......250.......4586.........49730.........290032.........1249890
......496......11874........175616........1257084.........6487112
......984......30876........620648........5448778........33673760
.....1952......80354.......2194096.......23617364.......174811880
.....3872.....208876.......7758744......102366154.......907556600
.....7680.....541624......27446576......443680650......4711821902
....15234....1400008......97142002.....1922960684.....24462953912
....30218....3618986.....343823110.....8334332160....127008089170
....59940....9363890....1217189036....36123881064....659412923000
...118896...24245852....4309583172...156575247076...3423615122520
LINKS
FORMULA
Empirical for column k:
k=1: a(n) = a(n-1) +a(n-2) +a(n-3) +a(n-4) +a(n-5) +a(n-6)
EXAMPLE
Some solutions for n=3 k=4
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..0....1....1....1....0....0....1....1....1....1....1....1....1....1....1....0
..3....3....4....2....0....0....4....4....2....2....4....3....2....4....1....4
..3....2....3....1....1....4....2....1....0....2....3....4....1....1....0....0
..2....4....2....2....4....0....1....0....3....0....4....2....0....3....1....2
..0....4....4....0....4....0....3....2....0....3....3....1....4....4....0....1
..2....3....2....0....0....1....0....1....4....2....0....1....1....3....0....2
..0....1....0....4....2....4....1....0....2....3....1....0....4....2....1....1
..1....1....4....4....1....2....0....1....2....0....4....0....4....3....1....0
CROSSREFS
Sequence in context: A027805 A027814 A109146 * A249212 A249319 A249198
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Oct 23 2014
STATUS
approved