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 A194778 T(n,k)=Number of lower triangles of an (n+2k-2)X(n+2k-2) 0..k array with new values introduced in row major order 0..k and no element unequal to more than one horizontal or vertical neighbor 14
 1, 7, 3, 43, 17, 6, 268, 105, 41, 12, 1740, 672, 265, 95, 23, 11862, 4490, 1736, 655, 219, 43, 85013, 31466, 11857, 4464, 1641, 493, 79, 639760, 231445, 85007, 31429, 11686, 4069, 1101, 143, 5045610, 1784788, 639753, 231395, 84727, 30608, 10121, 2427, 256 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1....7....43....268....1740....11862.....85013.....639760....5045610 ...3...17...105....672....4490....31466....231445....1784788...14404218 ...6...41...265...1736...11857....85007....639753....5045602...41615156 ..12...95...655...4464...31429...231395...1784723...14404136..121420974 ..23..219..1641..11686...84727...639325...5044981...41614291..358184223 ..43..493..4069..30608..229869..1782111..14399939..121414559.1066897441 ..79.1101.10121..80961..631373..5029741..41587186..358138793.3210593393 .143.2427.25025.214469.1745459.14321783.121261490.1066617315 LINKS R. H. Hardin, Table of n, a(n) for n = 1..120 EXAMPLE Some solutions for n=2 k=2 ..0........0........0........0........0........0........0........0 ..0.0......0.0......1.1......1.1......0.0......1.1......0.1......0.0 ..1.1.1....0.0.1....1.1.2....1.1.1....0.0.0....1.1.1....0.1.1....0.0.0 ..1.1.1.0..0.0.1.1..1.1.2.2..0.0.0.0..0.0.0.1..2.2.2.2..0.1.1.0..1.1.1.1 CROSSREFS Column 1 is A055244 Sequence in context: A272419 A272156 A271815 * A272010 A145758 A038269 Adjacent sequences: A194775 A194776 A194777 * A194779 A194780 A194781 KEYWORD nonn,tabl AUTHOR R. H. Hardin Sep 02 2011 STATUS approved

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Last modified July 19 03:15 EDT 2024. Contains 374388 sequences. (Running on oeis4.)