A202967
Number of arrays of 7 integers in -n..n with sum zero and adjacent elements differing in absolute value.
Original entry on oeis.org
6, 524, 9872, 66208, 289536, 941086, 2537024, 5933492, 12515772, 24295760, 44188086, 76110890, 125357152, 198686606, 304811136, 454458544, 660981870, 940393644, 1312104510, 1798910920, 2427885688, 3230300850, 4242680088
Offset: 1
Some solutions for n=4
..4....0....2...-4....3...-2...-2...-3....0...-1...-2....3....2....0....0...-4
.-2...-3....3....2....0....3...-4...-1...-1....3....3...-2....3....3....3....2
..4...-1....0...-4...-2...-1....1....0...-4....4...-4....1...-2...-1....4...-4
..0....2...-4....2....1...-3...-4....2....2....3....1....2....3...-2...-2....1
.-3....4...-2...-1...-4....0....2....1...-4...-2....0....0...-4....4...-4...-2
..1....0...-3....3...-1....4....4....2....3...-4....4...-4....0....0....2....4
.-4...-2....4....2....3...-1....3...-1....4...-3...-2....0...-2...-4...-3....3
A202968
Number of arrays of 8 integers in -n..n with sum zero and adjacent elements differing in absolute value.
Original entry on oeis.org
12, 1724, 47732, 447528, 2475008, 9824176, 31155004, 84017312, 200493156, 434793200, 873257136, 1646890444, 2946873064, 5043331924, 8307662160, 13238602092, 20492707704, 30919086656, 45598979576, 65890555856, 93479027928
Offset: 1
Some solutions for n=3
..2....1....3....2....2....3....2....2....0....0....1...-1....0....1....1...-1
.-3....3....0....1...-3....0....1....3....2....2....0....0...-2....0....0....0
.-1...-2...-1....3....2...-1...-3....1...-3...-1....2....3....3....2....3....2
..0...-3....0...-2...-1...-2....0...-2....1....2....0....2....0...-3...-2....1
..2....1...-3....1....2....3....2...-1....3....0...-2...-3...-3....0....0...-3
.-1...-2....0...-3...-3....0....0....0...-2...-2...-3....0....1...-3...-3....0
.-2....3....3....0....1...-1...-3...-2....0...-3...-1...-3....0....0...-2...-1
..3...-1...-2...-2....0...-2....1...-1...-1....2....3....2....1....3....3....2
A202969
Number of arrays of 9 integers in -n..n with sum zero and adjacent elements differing in absolute value.
Original entry on oeis.org
6, 5908, 229714, 3020170, 21274708, 102972822, 384996502, 1196677486, 3233011170, 7831389294, 17375280238, 35875950626, 69754837982, 128899962066, 228011800792, 388342150524, 639825818930, 1023746518060, 1595913984468
Offset: 1
Some solutions for n=2
..1....1...-1...-1...-1....1...-1...-1...-1....0....0....2...-1...-1...-1....2
..0....0....0....2....0....2...-2....0...-2...-1...-2....1....0....2....0....1
..1...-1....2....0....2....0....0....2....1....0....1....2...-2...-1....1...-2
..2...-2....1....2....1...-1....2....0....2...-1....2...-1...-1....2....2...-1
.-1....0....2...-1...-2...-2....0...-1...-1....2...-1....0....0...-1....1....2
.-2...-1...-1...-2....1...-1...-2....2....0....0....0...-1....2....0...-2....0
..0....2....0...-1....0....2....0....1...-1....1....1....0....0....1....1....1
.-1...-1...-2....0...-1....1....2...-2....0....0...-2...-1....2...-2....0...-2
..0....2...-1....1....0...-2....1...-1....2...-1....1...-2....0....0...-2...-1
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