23575

Appears in sequences

• Central column of Pascal's "rhombus" (actually a triangle) A059317.at n=10A059345
• a(n)= 5*a(n-1) +3*a(n-2) -15*a(n-3) +5*a(n-4) +3*a(n-5) -a(n-6).at n=10A107475
• Number of partitions of n such that the largest part is a multiple of the smallest part.at n=37A117086
• Numerator of Sum[Sum[(-1)^(i+1)*1/(i*j)^2, {i, 1, n}], {j, 1, n}].at n=3A119784
• Number of partitions of n into parts with no prime gaps in their factorization.at n=38A137792
• Right hand side of Pascal rhombus A059317.at n=55A160905
• Difference between sum of largest parts and sum of smallest parts of all partitions of n into an odd number of parts.at n=30A211870
• G.f.: exp( Sum_{n>=1} x^n/n * Product_{k>=1} 1/(1 - x^(n*k)*(1 + x^k)^n) ).at n=14A218575