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A108035 Triangle read by rows: n-th row is n-th 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, 233, 233, 233, 233, 233, 233, 233 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

FORMULA

G.f.: (1+x+y)/((1-x-x^2)*(1-y-y^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], {n-1}], {n, 13}]] (* Harvey P. Dale, Jul 18 2015 *)

PROG

(Haskell)

a108035 n k = a108035_tabl !! (n-1) !! (n-1)

a108035_row n = a108035_tabl !! (n-1)

a108035_tabl = zipWith replicate [1..] $ drop 2 a000045_list

-- Reinhard Zumkeller, Oct 07 2012

CROSSREFS

Cf. A000045, 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

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Last modified December 3 05:29 EST 2020. Contains 338899 sequences. (Running on oeis4.)