login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A019528 Poincare series for depths of roots in a certain root system. 0
5, 5, 6, 8, 11, 16, 25, 38, 59, 93, 148, 235, 376, 602, 966, 1550, 2491, 4003, 6436, 10348, 16643, 26766, 43052, 69247, 111387, 179169, 288207, 463601, 745744, 1199593, 1929661, 3104041, 4993156, 8031978, 12920238, 20783483, 33432314, 53779215 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

Posting to sci.math.research by dima(AT)win.tue.nl (Dmitrii V. Pasechnik), Oct 28 1996.

FORMULA

a(n+1)=sum_{i=n-11}^n v(i)*a(i), for v=[ 0, 0, -1, -1, -2, -1, 0, 2, 2, 1, 0 ].

CROSSREFS

Sequence in context: A111423 A153444 A175476 * A191695 A008945 A008705

Adjacent sequences:  A019525 A019526 A019527 * A019529 A019530 A019531

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com)

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 16:00 EST 2012. Contains 205938 sequences.