

A028919


Congruent to 0, 6, 10, 12 (mod 14).


0



0, 6, 10, 12, 14, 20, 24, 26, 28, 34, 38, 40, 42, 48, 52, 54, 56, 62, 66, 68, 70, 76, 80, 82, 84, 90, 94, 96, 98, 104, 108, 110, 112, 118, 122, 124, 126, 132, 136, 138, 140, 146, 150, 152, 154, 160, 164, 166, 168, 174, 178, 180, 182, 188, 192, 194, 196, 202, 206, 208, 210, 216, 220, 222, 224, 230, 234, 236
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OFFSET

1,2


LINKS

Table of n, a(n) for n=1..68.
Index to sequences with linear recurrences with constant coefficients, signature (1,0,0,1,1).


FORMULA

a(n) = 2*A047328(n). G.f. 2*x^2*(3+2*x+x^2+x^3) / ( (1+x)*(x^2+1)*(x1)^2 ).  R. J. Mathar, Oct 08 2011


MATHEMATICA

With[{c=14*Range[0, 20]}, Union[Flatten[{c, c+6, c+10, c+12}]]] (* Harvey P. Dale, Dec 25 2011 *)


CROSSREFS

Sequence in context: A036348 A100368 A128691 * A134620 A108315 A134616
Adjacent sequences: A028916 A028917 A028918 * A028920 A028921 A028922


KEYWORD

nonn


AUTHOR

Jan.Hagberg(AT)stat.su.se


EXTENSIONS

Corrected by R. J. Mathar, Oct 08 2011


STATUS

approved



