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A213494
a(n) = A213493(n)/12.
1
0, 0, 0, 0, 0, 0, 1, 4, 8, 17, 25, 40, 57, 81, 105, 141, 177, 225, 274, 337, 401, 482, 562, 661, 762, 882, 1002, 1146, 1290, 1458, 1627, 1822, 2018, 2243, 2467, 2722, 2979, 3267, 3555, 3879, 4203, 4563, 4924, 5323, 5723, 6164, 6604, 7087, 7572
OFFSET
0,8
FORMULA
a(n) = a(n-1)+a(n-2)-2*a(n-5)+a(n-8)+a(n-9)-a(n-10).
G.f.: (x^6 + 3*x^7 + 3*x^8 + 5*x^9)/(1 - x - x^2 + 2*x^5 - x^8 - x^9 + x^10).
MATHEMATICA
LinearRecurrence[{1, 1, 0, 0, -2, 0, 0, 1, 1, -1}, {0, 0, 0, 0, 0, 0, 1, 4, 8, 17}, 60] (* Harvey P. Dale, Jul 03 2021 *)
CROSSREFS
Cf. A213493.
Sequence in context: A026393 A345432 A298950 * A092321 A366157 A366069
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 13 2012
STATUS
approved