A183066 G.f.: A(x) = (1 + 21*x + 3*x^2 - x^3)/(1-x)^5.
1, 26, 123, 364, 845, 1686, 3031, 5048, 7929, 11890, 17171, 24036, 32773, 43694, 57135, 73456, 93041, 116298, 143659, 175580, 212541, 255046, 303623, 358824, 421225, 491426, 570051, 657748, 755189, 863070, 982111, 1113056, 1256673, 1413754, 1585115, 1771596
Offset: 0
Links
- Kelvin Voskuijl, Table of n, a(n) for n = 0..10000
- Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).
Programs
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PARI
{a(n)=polcoeff((1+21*x+3*x^2-x^3)/(1-x+x*O(x^n))^5,n)}
Formula
a(n) = A183065(n+1,1).