A200370 T(n,k)=Number of 0..k arrays x(0..n+4) of n+5 elements with zero n-1st differences.
1, 1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 5, 4, 3, 2, 1, 6, 5, 4, 3, 2, 1, 7, 6, 5, 4, 3, 2, 1, 8, 7, 6, 5, 4, 3, 2, 1, 9, 10, 7, 6, 5, 4, 3, 2, 1, 10, 13, 8, 7, 6, 5, 4, 3, 2, 1, 11, 16, 11, 8, 7, 6, 5, 4, 3, 2, 1, 12, 19, 14, 9, 8, 7, 6, 5, 4, 3, 2, 1, 13, 22, 21, 12, 9, 8, 7, 6, 5, 4, 3, 2, 1, 14, 25, 28, 21, 10, 13
Offset: 1
Examples
All solutions for n=9 k=9 ..4....1....6....2....0....2....8....9....3....5....7....7 ..4....1....6....2....0....6....8....9....3....5....7....3 ..4....1....6....2....0....2....8....9....3....5....7....7 ..4....1....6....2....0....0....8....9....3....5....7....9 ..4....1....6....2....0....2....8....9....3....5....7....7 ..4....1....6....2....0....6....8....9....3....5....7....3 ..4....1....6....2....0....9....8....9....3....5....7....0 ..4....1....6....2....0....9....8....9....3....5....7....0 ..4....1....6....2....0....6....8....9....3....5....7....3 ..4....1....6....2....0....2....8....9....3....5....7....7 ..4....1....6....2....0....0....8....9....3....5....7....9 ..4....1....6....2....0....2....8....9....3....5....7....7 ..4....1....6....2....0....6....8....9....3....5....7....3 ..4....1....6....2....0....2....8....9....3....5....7....7
Links
- R. H. Hardin, Table of n, a(n) for n = 1..291
Crossrefs
Row 3 is A008814
Comments