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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A069475 First differences of A069474, successive differences of (n+1)^6-n^6. 3
1560, 3360, 5880, 9120, 13080, 17760, 23160, 29280, 36120, 43680, 51960, 60960, 70680, 81120, 92280, 104160, 116760, 130080, 144120, 158880, 174360, 190560, 207480, 225120, 243480, 262560, 282360, 302880, 324120, 346080, 368760, 392160, 416280 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..32.

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (3,-3,1).

FORMULA

a(n) = 360*n^2 + 1440*n + 1560 = 120*A056107(n+2).

G.f.: 120*(13 - 11*x + 4*x^2))/(1 - x)^3. - Bruno Berselli, Feb 25 2015

MATHEMATICA

Table[360 n^2 + 1440 n + 1560, {n, 0, 40}] (* Bruno Berselli, Feb 25 2015 *)

PROG

(PARI) a(n)=360*n^2+1440*n+1560 \\ Charles R Greathouse IV, Jun 17 2017

CROSSREFS

Cf. A001014, A022522, A056107, A069473, A069474, A069476.

Sequence in context: A186393 A025026 A092001 * A158773 A259303 A035865

Adjacent sequences:  A069472 A069473 A069474 * A069476 A069477 A069478

KEYWORD

nonn,easy

AUTHOR

Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Mar 26 2002

EXTENSIONS

Offset changed from 1 to 0 and added a(0)=1560 by Bruno Berselli, Feb 25 2015

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified July 24 21:38 EDT 2017. Contains 289777 sequences.