103126

Appears in sequences

• Number of asymmetric (identity) trees with n nodes and 7 leaves.at n=10A055338
• Half the number of n X n binary matrices, symmetric under horizontal and vertical reflection, having equal row sums.at n=9A140453
• Half the number of n X n binary matrices having equal row sums.at n=4A140990
• a(n) = (n!)^n * [x^n] Product_{k>=1} (1 + x^k/(k!)^n).at n=5A336294