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A176593 List of pairs n,13*n. 0
1, 13, 2, 26, 3, 39, 4, 52, 5, 65, 6, 78, 7, 91, 8, 104, 9, 117, 10, 130, 11, 143, 12, 156, 13, 169, 14, 182, 15, 195, 16, 208, 17, 221, 18, 234, 19, 247, 20, 260, 21, 273, 22, 286, 23, 299, 24, 312, 25, 325, 26, 338, 27, 351, 28, 364, 29, 377, 30, 390, 31, 403, 32, 416, 33 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..65.

FORMULA

a(n)=(1/4)*(14*n+12*n*(-1)^n+1+(-1)^(n-1)) for n>1

CROSSREFS

Sequence in context: A008832 A180704 A040168 * A031066 A154355 A078421

Adjacent sequences:  A176590 A176591 A176592 * A176594 A176595 A176596

KEYWORD

nonn,tabf

AUTHOR

Vincenzo Librandi, Apr 23 2010

EXTENSIONS

Partially edited by N. J. A. Sloane, Jun 23 2010

STATUS

approved

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Last modified September 17 05:45 EDT 2014. Contains 246834 sequences.