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A203646 Number of arrays of n 0..15 integers with new values introduced in order 0..15 but otherwise unconstrained. 2
1, 2, 5, 15, 52, 203, 877, 4140, 21147, 115975, 678570, 4213597, 27644437, 190899322, 1382958545, 10480142147, 82864869803, 682076806005, 5832742192288, 51724157478221, 474869780161021, 4506714279517080, 44151953491540255 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 15 of A203647.
LINKS
FORMULA
Empirical: a(n) = 121*a(n-1) -6685*a(n-2) +223405*a(n-3) -5042947*a(n-4) +81308227*a(n-5) -965408015*a(n-6) +8576039615*a(n-7) -57312583328*a(n-8) +287212533608*a(n-9) -1066335473840*a(n-10) +2866534951280*a(n-11) -5367984964224*a(n-12) +6557974412544*a(n-13) -4622628648960*a(n-14) +1394852659200*a(n-15).
CROSSREFS
Sequence in context: A192128 A203644 A203645 * A292935 A000110 A336022
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2012
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)