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A022286 n*(29n-1)/2. 0
0, 14, 57, 129, 230, 360, 519, 707, 924, 1170, 1445, 1749, 2082, 2444, 2835, 3255, 3704, 4182, 4689, 5225, 5790, 6384, 7007, 7659, 8340, 9050, 9789, 10557, 11354, 12180, 13035, 13919, 14832, 15774, 16745 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..34.

FORMULA

a(n)=29*n+a(n-1)-15 (with a(0)=0) [From Vincenzo Librandi, Aug 04 2010]

EXAMPLE

a(1)=29*1+0-15=14; a(2)=29*2+14-15=57; a(3)=29*3+57-15=129 [From Vincenzo Librandi, Aug 04 2010]

CROSSREFS

Sequence in context: A202242 A041374 A070741 * A005915 A211069 A212675

Adjacent sequences:  A022283 A022284 A022285 * A022287 A022288 A022289

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 19 19:50 EDT 2013. Contains 226416 sequences.