2230260741domain: NAppears in sequencesSums of the squares of multinomial coefficients.at n=8A183240Coefficients in q-expansion of (E_2*E_4 - E_6)^2/(300*(E_6^2-E_4^3)), where E_2, E_4, E_6 are the Eisenstein series shown in A006352, A004009, A013973, respectively.at n=9A281373