

A108035


Triangle read by rows: nth row is nth nonzero Fibonacci number repeated n times.


5



1, 2, 2, 3, 3, 3, 5, 5, 5, 5, 8, 8, 8, 8, 8, 13, 13, 13, 13, 13, 13, 21, 21, 21, 21, 21, 21, 21, 34, 34, 34, 34, 34, 34, 34, 34, 55, 55, 55, 55, 55, 55, 55, 55, 55, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 144, 233, 233, 233, 233, 233
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OFFSET

1,2


LINKS

Reinhard Zumkeller, Rows n = 1..120 of triangle, flattened


FORMULA

G.f.: (1+x+y)/((1xx^2)*(1yy^2)). [U coordinates]


EXAMPLE

1; 2,2; 3,3,3; 5,5,5,5; 8,8,8,8,8; ...


MATHEMATICA

Flatten[Table[Table[Fibonacci[n], {n1}], {n, 13}]] (* Harvey P. Dale, Jul 18 2015 *)


PROG

(Haskell)
a108035 n k = a108035_tabl !! (n1) !! (n1)
a108035_row n = a108035_tabl !! (n1)
a108035_tabl = zipWith replicate [1..] $ drop 2 a000045_list
 Reinhard Zumkeller, Oct 07 2012


CROSSREFS

Cf. A039913, A108036, A108037.
Cf. A023607 (row sums).
Sequence in context: A295629 A076272 A180101 * A202503 A049747 A260684
Adjacent sequences: A108032 A108033 A108034 * A108036 A108037 A108038


KEYWORD

nonn,tabl


AUTHOR

N. J. A. Sloane, Jun 01 2005


STATUS

approved



