A268259 Number of length-(n+1) 0..6 arrays with new repeated values introduced in sequential order starting with zero.

43, 265, 1634, 10082, 62249, 384605, 2377935, 14712729, 91096234, 564452368, 3500093507, 21720172553, 134891317195, 838393028557, 5215069599851, 32465881779821, 202280863699652, 1261388175969986, 7872540872887539

Offset

1,1

Comments

Column 6 of A268261.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 43*a(n-1) -777*a(n-2) +7545*a(n-3) -41215*a(n-4) +115171*a(n-5) -81663*a(n-6) -274113*a(n-7) +244616*a(n-8) +557626*a(n-9) +307440*a(n-10) +67488*a(n-11) +5040*a(n-12)

Example

Some solutions for n=5
..2....5....1....0....1....0....3....0....5....6....6....5....4....5....3....6
..6....3....5....5....2....0....4....4....1....4....5....0....3....4....0....4
..2....0....3....1....6....1....6....3....0....3....4....3....6....2....5....6
..0....6....6....0....2....0....4....0....4....0....0....5....5....5....1....5
..1....2....4....6....6....1....1....2....0....3....2....0....4....0....3....4
..2....5....6....1....2....3....3....6....1....4....6....5....6....5....2....2

Crossrefs

Cf. A268261.

Sequence in context: A262330 A142632 A231226 * A140012 A123795 A364320

Adjacent sequences: A268256 A268257 A268258 * A268260 A268261 A268262

Keyword

nonn

Author

R. H. Hardin, Jan 29 2016

Status

approved