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A191879 Ordered sums f+5*g, where f and g are positive Fibonacci numbers (A000045). 5
6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 20, 23, 26, 27, 28, 30, 31, 33, 36, 38, 39, 41, 42, 43, 44, 45, 46, 48, 49, 53, 59, 60, 61, 65, 66, 67, 68, 70, 73, 74, 78, 80, 86, 94, 95, 99, 104, 106, 107, 108, 110, 113, 114, 118, 120, 126, 129, 139, 149, 154, 159 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..5000

MATHEMATICA

c = 1; d = 5; f[n_] := Fibonacci[n];

g[n_] := c*f[n]; h[n_] := d*f[n];

t[i_, j_] := h[i] + g[j];

u = Table[t[i, j], {i, 1, 20}, {j, 1, 20}];

v = Union[Flatten[u ]]    (* A191879 *)

t1[i_, j_] := If[g[i] - h[j] > 0, g[i] - h[j], 0]

u1 = Table[t1[i, j], {i, 1, 20}, {j, 1, 20}];

v1 = Union[Flatten[u1 ]]  (* A191880: c*f(i)-d*f(j) *)

g1[n_] := d*f[n]; h1[n_] := c*f[n];

t2[i_, j_] := If[g1[i] - h1[j] > 0, g1[i] - h1[j], 0]

u2 = Table[t2[i, j], {i, 1, 20}, {j, 1, 20}];

v2 = Union[Flatten[u2 ]]  (* A191881: d*f(i)-c*f(j) *)

v3 = Union[v1, v2]        (* A191882*)

CROSSREFS

Cf. A191880, A191881, A191882.

Sequence in context: A047551 A010755 A063971 * A097069 A031237 A031314

Adjacent sequences:  A191876 A191877 A191878 * A191880 A191881 A191882

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jun 18 2011

STATUS

approved

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Last modified August 9 13:57 EDT 2020. Contains 336323 sequences. (Running on oeis4.)