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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A089204 Triangle read by rows: T(n,k) = numerator of P(n, k) = 1 - n!/(n^k*(n-k)!). 1

%I #1 Feb 19 2004 03:00:00

%S 1,1,7,1,5,29,1,13,101,601,1,4,13,49,319,1,19,223,2041,16087,116929,1,

%T 11,151,407,3781,16069,130757,1,25,131,1627,17443,56809,526961,

%U 4778489,1,7,62,436,1061,2936,30683,155683,1561933

%N Triangle read by rows: T(n,k) = numerator of P(n, k) = 1 - n!/(n^k*(n-k)!).

%C Triangle of numbers P(n,k) begins:

%C .............................1/2

%C ......................1/3...........7/9

%C ...............1/4...........5/8............29/32

%C .........1/5.........13/25.........101/125..........601/625

%C ...1/6.........4/9..........13/18...........49/54...............319/324

%e a(8) = 13 because 13 is numerator of 13/25 = P(3,5) = T(

%e a(15) = 319 because 319 is numerator of 319/324 = P(6,6)

%Y Cf. A089206, A088141.

%K frac,nonn,tabl

%O 1,3

%A Artemario Tadeu Medeiros da Silva (artemario(AT)uol.com.br), Dec 09 2003

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 10 01:46 EDT 2024. Contains 372354 sequences. (Running on oeis4.)