The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A195462 1!*2!*3!*...*n!*H(n); H(n) the n-th harmonic number. 1
 1, 3, 22, 600, 78912, 60963840, 325173657600, 13743074967552000, 5190968541142056960000, 19502847300506769948672000000, 802654006697267902579055001600000000, 395082050396018659026474786525020160000000000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Determinant of the n x n - Matrix A[i,j] with A[1,j]=1 (1<=j<=n) and A[i,j]=j^i (i>1, 1<=j<=n) [L. Theisinger]. REFERENCES L. Theisinger, Bemerkung über die harmonische Reihe. Monatshefte für Mathematik und Physik XXVI. Jahrgang (1915), 132-134. LINKS Alois P. Heinz, Table of n, a(n) for n = 1..30 FORMULA a(n) = A000178(n)*A001008(n)/A002805(n). EXAMPLE a(4) = 1!*2!*3!*4!*H(4) = 1*2*6*24*(25/12) = 600. MAPLE a:= n-> mul(j^(n-j+1), j=2..n) * add(1/k, k=1..n): seq(a(n), n=1..15);  # Alois P. Heinz, Sep 21 2011 CROSSREFS Cf. A000178, A001008, A002805. Sequence in context: A272659 A233748 A153230 * A276749 A232016 A132558 Adjacent sequences:  A195459 A195460 A195461 * A195463 A195464 A195465 KEYWORD nonn,easy AUTHOR Franz Vrabec, Sep 21 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 6 02:58 EDT 2022. Contains 355108 sequences. (Running on oeis4.)