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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A133767 a(n) = (4*n+3)*(4*n+5)*(4*n+7). 2
105, 693, 2145, 4845, 9177, 15525, 24273, 35805, 50505, 68757, 90945, 117453, 148665, 184965, 226737, 274365, 328233, 388725, 456225, 531117, 613785, 704613, 803985, 912285, 1029897, 1157205, 1294593, 1442445, 1601145, 1771077, 1952625 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

Index entries for sequences related to linear recurrences with constant coefficients

FORMULA

G.f.: G(x) = 3*(35+91*x+x^2+x^3)/(1-x)^4. E.g.f: E(x) = (105+588*x+432*x^2+64*x^3)*exp(x) sum(4/((4*m+3)*(4*m+5)*(4*m+7)),m=0..infinity) = 5/6 - Pi/4.

MAPLE

seq((4*n+3)*(4*n+5)*(4*n+7), n=0..40);

CROSSREFS

Sequence in context: A143041 A078420 A152826 * A166816 A166798 A033593

Adjacent sequences:  A133764 A133765 A133766 * A133768 A133769 A133770

KEYWORD

easy,nonn

AUTHOR

Miklos Kristof (kristmikl(AT)freemail.hu), Jan 02 2008

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 15 05:45 EST 2012. Contains 205694 sequences.