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A109544 Expansion of (1+x-x^3-2x^4)/ (1-x^2-x^3-x^4-x^5). 0
1, 1, 1, 1, 1, 4, 4, 7, 10, 16, 25, 37, 58, 88, 136, 208, 319, 490, 751, 1153, 1768, 2713, 4162, 6385, 9796, 15028, 23056, 35371, 54265, 83251, 127720, 195943, 300607, 461179, 707521, 1085449, 1665250, 2554756, 3919399, 6012976, 9224854, 14152381 (list; graph; refs; listen; history; internal format)
OFFSET

0,6

REFERENCES

Borwein and Hare,"Some Computations on Pisot and Salem Numbers",2000, Table 1

LINKS

Index entries for sequences related to linear recurrences with constant coefficients, signature (0,1,1,1,1).

FORMULA

a(n) = a(n-2)+a(n-3)+a(n-4)+a(n-5).

MATHEMATICA

F[1] = 1; F[2] = 1; F[3] = 1; F[4] = 1; F[5] = 1; F[n__] := F[n] = F[n - 2] + F[n - 3] + F[n - 4] + F[n - 5] aa = Table[F[n], {n, 1, 50}]

CROSSREFS

Cf. A013982.

Sequence in context: A185670 A063984 A011981 * A187893 A036605 A183541

Adjacent sequences:  A109541 A109542 A109543 * A109545 A109546 A109547

KEYWORD

nonn,easy

AUTHOR

Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jun 20 2005

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.