1383782400

Appears in sequences

• a(n) = n!*(3*n^2 - 15*n + 10)/6.at n=7A034861
• a(n) = n!*(3*n^2 - 15*n + 10)/6, n > 4.at n=7A034862
• Irregular triangle read by rows: T(n,m) = coefficients in power/Fourier series expansion of an arbitrary anharmonic oscillator's exact period.at n=28A276816
• Irregular triangle read by rows: T(n,m) = coefficients in power/Fourier series expansion of an arbitrary anharmonic oscillator's exact period.at n=32A276816
• a(1)=2048. For n>1, a(n) is the LCM of a(n-1) and A140635(a(n-1)).at n=5A351162
• a(n) = binomial(n+1,2)!/(2*n-1)!!.at n=4A374928