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A016888 a(n) = (5n + 3)^4. 0
81, 4096, 28561, 104976, 279841, 614656, 1185921, 2085136, 3418801, 5308416, 7890481, 11316496, 15752961, 21381376, 28398241, 37015056, 47458321, 59969536, 74805201, 92236816, 112550881, 136048896 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
G.f.: (-81-3691*x-8891*x^2-2321*x^3-16*x^4)/(-1+x)^5. - Harvey P. Dale, Jul 12 2022
a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5). - Wesley Ivan Hurt, Jan 02 2024
MATHEMATICA
(5Range[0, 30]+3)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {81, 4096, 28561, 104976, 279841}, 30] (* Harvey P. Dale, Jul 12 2022 *)
CROSSREFS
Sequence in context: A053108 A237100 A245665 * A205238 A006312 A183962
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified April 20 07:43 EDT 2024. Contains 371799 sequences. (Running on oeis4.)