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 A309803 a(n) is the coefficient of x^n in the polynomial Product_{i=1..n+3} (prime(i)*x-1). 3
 -1, -17, -288, -5102, -107315, -2429223, -64002818, -2057205252, -69940351581, -2788890538777, -122099137635118, -5580021752377242, -276932659619923555, -15388458479166668283, -946625238259888348698, -60082571176666116692888, -4171440414742758122621945 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Alexey V. Bazhin, Table of n, a(n) for n = 0..300 FORMULA a(n) = [x^n] Product_{i=1..n+3} (prime(i)*x-1). a(n) = -abs(A070918(n+3,3)). a(n) = -abs(A238146(n+3,n)) for n>0. a(n) = -A260613(n+3,n). MAPLE a:= n-> coeff(mul(ithprime(i)*x-1, i=1..n+3), x, n): seq(a(n), n=0..20);  # Alois P. Heinz, Aug 19 2019 CROSSREFS Cf. A000040, A002110, A024451, A070918, A309802, A309804, A033999, A007504, A024447, A024448, A024449, A054640, A005867, A238146, A260613. Sequence in context: A196901 A171322 A078366 * A045607 A045606 A171291 Adjacent sequences:  A309800 A309801 A309802 * A309804 A309805 A309806 KEYWORD sign,easy AUTHOR Alexey V. Bazhin, Aug 17 2019 STATUS approved

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Last modified December 12 15:11 EST 2019. Contains 329960 sequences. (Running on oeis4.)