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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A113805 Numbers that are congruent to {5, 9} mod 14. 3
5, 9, 19, 23, 33, 37, 47, 51, 61, 65, 75, 79, 89, 93, 103, 107, 117, 121, 131, 135, 145, 149, 159, 163, 173, 177, 187, 191, 201, 205, 215, 219, 229, 233, 243, 247, 257, 261, 271, 275, 285, 289, 299, 303, 313, 317, 327, 331, 341, 345, 355, 359, 369 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n) = 14*n-a(n-1)-14 (with a(1)=5). [From Vincenzo Librandi, Nov 13 2010]

Contribution from Wolfdieter Lang, Dec 15 2011 (Start)

a(n) = 7*n-(7+3*(-1)^n)/2.

O.g.f.: x*(5+4*x+5*x^2)/((1+x)*(1-x)^2).

See the Bruno Berselli contribution under A113801.

(End)

MATHEMATICA

Flatten[Table[14n + {5, 9}, {n, 0, 28}]] (* Alonso del Arte, Dec 15 2011 *)

CROSSREFS

Cf. A113801, A113802, A113803, A113804, A113806, A008589, A113807.

Sequence in context: A046590 A226663 A023521 * A160722 A255652 A061202

Adjacent sequences:  A113802 A113803 A113804 * A113806 A113807 A113808

KEYWORD

nonn,easy

AUTHOR

Giovanni Teofilatto, Jan 22 2006

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 13 12:45 EST 2019. Contains 329094 sequences. (Running on oeis4.)