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A203645 Number of arrays of n 0..14 integers with new values introduced in order 0..14 but otherwise unconstrained. 1
1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 678570, 4213597, 27644437, 190899322, 1382958545, 10480142146, 82864869667, 682076796009, 5832741665152, 51724135127267, 474868970216557, 4506688232943076, 44151191130412991 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 14 of A203647.

LINKS

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

FORMULA

Empirical: a(n) = 106*a(n-1) -5096*a(n-2) +147056*a(n-3) -2840838*a(n-4) +38786748*a(n-5) -385081268*a(n-6) +2816490248*a(n-7) -15200266081*a(n-8) +59999485546*a(n-9) -169679309436*a(n-10) +331303013496*a(n-11) -418753514880*a(n-12) +303268406400*a(n-13) -93405312000*a(n-14).

CROSSREFS

Sequence in context: A203643 A192128 A203644 * A203646 A292935 A000110

Adjacent sequences:  A203642 A203643 A203644 * A203646 A203647 A203648

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2012

STATUS

approved

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Last modified February 17 20:32 EST 2018. Contains 299297 sequences. (Running on oeis4.)