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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A133471 a(n+1) = (n^2)*a(n) + a(n-1). 0
0, 1, 4, 37, 692, 17337, 624824, 30633713, 1961182456, 158886412649, 15890602447356, 1922921782542725, 276916627288599756, 46800832933555901489, 9173240171604245291600, 1798001874467365633055089 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

This is to n^2 as A001040 is to n. Alternates between even and odd. After a(3) = 37, which is the next prime?

CROSSREFS

Cf. A000045, A000290, A001040.

Sequence in context: A094408 A061683 A084283 * A163880 A183509 A027461

Adjacent sequences:  A133468 A133469 A133470 * A133472 A133473 A133474

KEYWORD

easy,nonn

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Nov 28 2007

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 11:47 EST 2012. Contains 205907 sequences.