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A075374 a(1)=1, a(2)=2, a(n+1) = (a(n)+a(n+2))/n or a(n+2) = n*a(n+1)-a(n). 5
1, 2, 1, 0, -1, -4, -19, -110, -751, -5898, -52331, -517412, -5639201, -67153000, -867349799, -12075744186, -180268812991, -2872225263670, -48647560669399, -872783866785512, -16534245908255329, -329812134298321068, -6909520574356487099, -151679640501544395110 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Starting with offset 5 unsigned: (1, 4, 19, 110, 751,...) = eigensequence of triangle A003991. - Gary W. Adamson, May 17 2010

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..451

MAPLE

a[1] := 1:a[2] := 2:for n from 1 to 45 do a[n+2] := n*a[n+1]-a[n]:od:seq(a[i], i=1..45);

CROSSREFS

Cf. A003991. - Gary W. Adamson, May 17 2010

Sequence in context: A165519 A266972 A266493 * A293024 A292948 A210872

Adjacent sequences:  A075371 A075372 A075373 * A075375 A075376 A075377

KEYWORD

sign

AUTHOR

Amarnath Murthy, Sep 20 2002

EXTENSIONS

More terms from Sascha Kurz, Jan 30 2003

STATUS

approved

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Last modified August 10 08:22 EDT 2020. Contains 336368 sequences. (Running on oeis4.)