72556

Appears in sequences

• Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^18 in powers of x.at n=9A047643
• Number of Motzkin paths of length n with no level steps at odd level.at n=16A090344
• a(n) = (n-1)*(n-2)*(n^2+9*n+12)/24.at n=35A323847
• Numbers k such that s(k) = s(k+1), where s(k) is A059975.at n=29A327250
• Symmetric difference of the primitive non-deficient numbers and the primitive Zumkeller numbers.at n=26A378538
• Numbers that are primitive Zumkeller, but not primitive non-deficient.at n=18A378657
• Internal digits of k^3 include digits of k as substring, k does not end in 0.at n=12A383640
• Expansion of (1+x-2*x^2) / (1-x-6*x^2+2*x^3).at n=11A384730