A187992
Number of nondecreasing arrangements of 8 numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*2^|x(i)| zero.
Original entry on oeis.org
1452, 2199, 3158, 4357, 5825, 7592, 9689, 12148, 15002, 18285, 22032, 26279, 31063, 36422, 42395, 49022, 56344, 64403, 73242, 82905, 93437, 104884, 117293, 130712, 145190, 160777, 177524, 195483, 214707, 235250, 257167, 280514, 305348, 331727, 359710, 389357, 420729, 453888, 488897, 525820
Offset: 1
Some solutions for n=3
.-9...-8...-8...-6...-8...-8...-7...-7...-8...-9...-6...-6...-6...-8...-9...-6
.-2...-2...-8...-4...-7...-5...-4...-7...-7...-7...-5...-2...-6...-8...-9...-6
.-2...-1...-5...-4...-6...-4...-3...-3...-6...-7...-1....0...-6...-3...-4...-6
.-1....1...-3...-1...-6...-1...-3...-3...-6...-7....0....0...-6...-3....4...-1
..1....1...-3...-1...-5....1....5...-3...-3....7....0....1...-5...-1....8...-1
..3....1....4....2....4....4....5....3...-3....7....5....4...-5....1....8....2
..8....7....5....5....4....5....5....4....4....7....5....4....6....4....8....6
..8....7....9....6....9....8....6....8....9....9....5....5....8....9....8....7
A187986
Number of nondecreasing arrangements of n numbers x(i) in -(n+5)..(n+5) with the sum of sign(x(i))*2^|x(i)| zero.
Original entry on oeis.org
0, 7, 15, 60, 222, 746, 2742, 9689, 34588, 124062, 443469, 1591177, 5710783, 20514746, 73779819, 265523140, 956384656, 3447285428, 12433999199, 44877035870, 162066465738, 585603996081, 2117103447068, 7657611562951, 27710598382843, 100320181906860, 363337451934873, 1316442508560564
Offset: 1
All solutions for n=3
.-8...-1...-3...-6...-2...-4...-7...-7...-4...-2...-5...-5...-3...-1...-6
..7....0...-3....5....1...-4...-7....6....3...-2....4...-5....2...-1...-6
..7....0....4....5....1....5....8....6....3....3....4....6....2....2....7
A187987
Number of nondecreasing arrangements of n numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*2^|x(i)| zero.
Original entry on oeis.org
0, 8, 17, 72, 267, 915, 3407, 12148, 43820, 158361, 570132, 2058621, 7429283, 26823311, 96904923, 350182773, 1266059030, 4579170527, 16568732508, 59974168593, 217170088270, 786671363225, 2850611975840, 10333040668513, 37467797814236, 135900958160905
Offset: 1
Some solutions for n=3
.-1...-7...-4...-7...-8...-3...-3...-5...-6...-6...-8...-5...-4...-2...-9...-1
..0....6...-4...-7...-8...-3....2...-5...-6....5....7....4....3...-2....8...-1
..0....6....5....8....9....4....2....6....7....5....7....4....3....3....8....2