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A203644 Number of arrays of n 0..13 integers with new values introduced in order 0..13 but otherwise unconstrained 1
1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 678570, 4213597, 27644437, 190899322, 1382958544, 10480142026, 82864861847, 682076428809, 5832727748374, 51723682798067, 474855882753977, 4506342616999876, 44142711725983660 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 13 of A203647

LINKS

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

FORMULA

Empirical: a(n) = 92*a(n-1) -3809*a(n-2) +93808*a(n-3) -1530243*a(n-4) +17419116*a(n-5) -141963107*a(n-6) +835933384*a(n-7) -3542188936*a(n-8) +10614910592*a(n-9) -21727767984*a(n-10) +28528276608*a(n-11) -21289201920*a(n-12) +6706022400*a(n-13)

CROSSREFS

Sequence in context: A192867 A203643 A192128 * A203645 A203646 A292935

Adjacent sequences:  A203641 A203642 A203643 * A203645 A203646 A203647

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2012

STATUS

approved

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Last modified November 15 11:18 EST 2019. Contains 329144 sequences. (Running on oeis4.)