366282domain: NAppears in sequencesNumber of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to n-5.at n=12A180295Numbers n such that the sum of the pentagonal numbers P(n), P(n+1), P(n+2) and P(n+3) is equal to the heptagonal number H(m) for some m.at n=2A252769