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!)
A215960 First differences of A016759. 2
2186, 75938, 745418, 3959426, 14704202, 43261346, 108110858, 239479298, 483533066, 907216802, 1603736906, 2698690178, 4356837578, 6789523106, 10262737802, 15105828866, 21720853898, 30592580258, 42299129546, 57523267202, 77064337226, 101850842018 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
Philippe A. J. G. Chevalier, On the discrete geometry of physical quantities, Preprint, 2012.
Philippe A. J. G. Chevalier, A "table of Mendeleev" for physical quantities?, Slides from a talk, May 14 2014, Leuven, Belgium.
FORMULA
G.f.: 2*(1093+30318*x+129879*x^2+129844*x^3+30339*x^4+1086*x^5+x^6)/(1-x)^7. [Bruno Berselli, Aug 29 2012]
a(n) = 2*(7*t*(t*(t+17)+91)+1093), where t=4*n*(n+2). [Bruno Berselli, Aug 29 2012]
MATHEMATICA
LinearRecurrence[{7, -21, 35, -35, 21, -7, 1}, {2186, 75938, 745418, 3959426, 14704202, 43261346, 108110858}, 22] (* Bruno Berselli, Aug 29 2012 *)
PROG
(Magma) [2*(7*t*(t*(t+17)+91)+1093) where t is 4*n*(n+2): n in [0..21]]; // Bruno Berselli, Aug 29 2012
CROSSREFS
Cf. A016759.
Sequence in context: A068304 A152816 A321823 * A279070 A046320 A232926
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Aug 28 2012
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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)