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 A188236 T(n,k)=Number of nondecreasing arrangements of n numbers in -(n+k-2)..(n+k-2) with sum zero and not more than two numbers equal 15
 1, 1, 2, 1, 3, 4, 1, 4, 7, 15, 1, 5, 12, 30, 58, 1, 6, 17, 52, 119, 245, 1, 7, 24, 81, 221, 527, 1082, 1, 8, 31, 121, 374, 1019, 2395, 5020, 1, 9, 40, 172, 598, 1818, 4818, 11376, 24040, 1, 10, 49, 234, 903, 3047, 8964, 23522, 55368, 118154, 1, 11, 60, 311, 1317, 4859 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Table starts ......1......1......1.......1.......1.......1.......1........1........1 ......2......3......4.......5.......6.......7.......8........9.......10 ......4......7.....12......17......24......31......40.......49.......60 .....15.....30.....52......81.....121.....172.....234......311......403 .....58....119....221.....374.....598.....903....1317.....1852.....2540 ....245....527...1019....1818....3047....4859....7435....10994....15791 ...1082...2395...4818....8964...15696...26123...41748....64370....96346 ...5020..11376..23522...45225...81981..141519..234413...374820...581280 ..24040..55368.117209..231596..432491..769915.1316060..2171675..3475284 .118154.275735.594789.1202495.2302608.4209720.7395049.12546170.20642874 LINKS R. H. Hardin, Table of n, a(n) for n = 1..521 EXAMPLE Some solutions for n=6 k=4 .-7...-8...-5...-8...-5...-7...-7...-3...-8...-8...-6...-6...-5...-7...-6...-5 .-4...-8...-3...-5...-5...-7...-4...-3...-4...-8...-6...-4...-4...-4...-2...-5 ..0...-4...-2...-4...-1...-1....1....1....0....0....2...-4....1....0...-1....1 ..2....6....0....3....1....0....2....1....3....2....2....2....1....1...-1....1 ..3....7....4....7....3....7....2....2....4....7....3....4....3....3....3....4 ..6....7....6....7....7....8....6....2....5....7....5....8....4....7....7....4 CROSSREFS Row 3 is A074148(n+1) Sequence in context: A078925 A361042 A072506 * A181851 A210231 A180378 Adjacent sequences: A188233 A188234 A188235 * A188237 A188238 A188239 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 24 2011 STATUS approved

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Last modified April 24 05:44 EDT 2024. Contains 371918 sequences. (Running on oeis4.)