28747

Appears in sequences

• a(n) = T(n,n-3), where T is the array in A026374.at n=36A026382
• a(n) = T(n,n-3), where T is the array in A026386.at n=36A026394
• Matrix square of triangle V = A136230, read by rows.at n=41A136234
• Least positive x in the Diophantine equation x^3 + y^3 = n*z^3 (with x >= y and y != 0).at n=25A190356
• Constant term of the reduction by x^2->x+1 of the polynomial p(n,x) = 1 + x^n + x^(2n).at n=11A192464
• Partial sums of 3-almost primes which are again 3-almost primes, i.e., have exactly 3 not necessarily distinct prime factors.at n=33A217018
• Number of partitions of n that contain {1,2} minus number of partitions of n that contain neither 1 nor 2.at n=42A324368