5830034720domain: NAppears in sequencesNumber of fair distributions (equal sum) of the integers {1,..,4n} between A and B = number of solutions to the equation {+-1 +-2 +- 3 ... +-4*n = 0}.at n=10A060468Number of solutions to +- 1 +- 2 +- 3 +- ... +- n = 0.at n=40A063865