42115domain: NAppears in sequencesNumber of partially achiral trees with n nodes.at n=20A003243Numerators of continued fraction convergents to sqrt(118).at n=7A041214Number of partitions of n with more odd parts than even parts.at n=42A108950Number of integer solutions to (x_1)^2 + (x_2)^2 + ... + (x_7)^2 <= n.at n=13A341396