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A113803 Numbers that are congruent to {3, 11} mod 14. 5
3, 11, 17, 25, 31, 39, 45, 53, 59, 67, 73, 81, 87, 95, 101, 109, 115, 123, 129, 137, 143, 151, 157, 165, 171, 179, 185, 193, 199, 207, 213, 221, 227, 235, 241, 249, 255, 263, 269, 277, 283, 291, 297, 305, 311, 319, 325, 333, 339, 347, 353, 361, 367 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Third row A113807.

LINKS

Table of n, a(n) for n=1..53.

FORMULA

a(n) = 14*n-a(n-1)-14 (with a(1)=3) [From Vincenzo Librandi, Nov 13 2010]

Contribution from Wolfdieter Lang, Dec 15 2011 (Start)

a(n) = 7*n-(7-(-1)^n)/2.

O.g.f.: x*(3+8*x+3*x^2)/((1+x)*(1-x)^2).

See the Bruno Berselli contribution under A113801.

(End)

CROSSREFS

Cf. A113801, A113802, A113804-A113807, A008589.

Sequence in context: A118590 A136082 A106083 * A226423 A045431 A126691

Adjacent sequences:  A113800 A113801 A113802 * A113804 A113805 A113806

KEYWORD

nonn,easy

AUTHOR

Giovanni Teofilatto, Jan 22 2006

STATUS

approved

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Last modified January 25 03:49 EST 2020. Contains 331241 sequences. (Running on oeis4.)