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 A200454 T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences 14
 4, 10, 4, 26, 44, 6, 44, 142, 144, 10, 72, 342, 728, 486, 14, 102, 678, 2334, 3788, 1582, 22, 142, 1148, 5720, 16380, 19802, 5478, 34, 184, 1832, 12002, 50852, 115140, 103726, 18692, 52, 236, 2744, 22276, 127988, 451708, 820650, 548204, 64782, 80, 290, 3874 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ...4.....10.......26.........44..........72..........102...........142 ...4.....44......142........342.........678.........1148..........1832 ...6....144......728.......2334........5720........12002.........22276 ..10....486.....3788......16380.......50852.......127988........278906 ..14...1582....19802.....115140......451708......1375006.......3513884 ..22...5478...103726.....820650.....4062384.....14923636......44716536 ..34..18692...548204....5876818....36725772....163058296.....572857272 ..52..64782..2916664...42324384...334032710...1791564880....7380022092 ..80.223272.15576706..306098316..3050654456..19771609900...95496980144 .126.776430.83481240.2222013090.27965763262.219008350922.1240352594210 LINKS R. H. Hardin, Table of n, a(n) for n = 1..715 EXAMPLE Some solutions for n=4 k=3 ..0....1...-1....1....1...-1....0....2...-3...-1...-1....0...-1...-1....3...-3 .-1...-3....2....3...-1....1...-1....0....3...-2....1...-2....3....3...-3....2 ..3...-1...-1...-3....2...-1...-3...-1....1....0...-3....0....2....0...-2...-1 .-1....3....1...-1...-2....1....2...-3....2....1....0...-3...-2...-1....1....3 ..1...-2...-3....2....1....2....0....0...-3....3....2....3....1...-3....0....0 .-2....2....2...-2...-1...-2....2....2....0...-1....1....2...-3....2....1...-1 CROSSREFS Column 1 is twice A077419(n+2) Sequence in context: A059136 A128505 A336988 * A303052 A003564 A347116 Adjacent sequences: A200451 A200452 A200453 * A200455 A200456 A200457 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 18 2011 STATUS approved

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Last modified June 17 09:44 EDT 2024. Contains 373444 sequences. (Running on oeis4.)