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A017548
a(n) = (12n+2)^4.
0
16, 38416, 456976, 2085136, 6250000, 14776336, 29986576, 54700816, 92236816, 146410000, 221533456, 322417936, 454371856, 623201296, 835210000, 1097199376, 1416468496, 1800814096, 2258530576
OFFSET
0,1
FORMULA
a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5). - Wesley Ivan Hurt, Mar 02 2023
MATHEMATICA
(12*Range[0, 20]+2)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {16, 38416, 456976, 2085136, 6250000}, 20] (* Harvey P. Dale, Jul 09 2017 *)
CROSSREFS
Sequence in context: A280656 A265662 A253912 * A265588 A185141 A087586
KEYWORD
nonn,easy
AUTHOR
STATUS
approved