54729

Appears in sequences

• Expansion of Product_{m>=1} (1 + m*q^m).at n=24A022629
• Sheffer triangle (exp(x), exp(3*x) - 1). Named S2[3,1].at n=23A282629
• a(n) = 5*Fibonacci(n) + (-1)^n.at n=21A371843