54867

Appears in sequences

• The Wiener index of a benzenoid consisting of a linear chain of n hexagons.at n=20A143938
• Number of 5-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and first differences in -n..n.at n=18A208996
• Number of solutions to +-2 +- 3 +- 5 +- 7 +- ... +- prime(n-1) = n.at n=25A350695
• G.f.: Sum_{k>=0} x^k * Product_{j=1..6*k} (1 + x^j)/(1 - x^j).at n=24A385092