41769
domain: N
Appears in sequences
- Self-convolution of (1, p(1), p(2), ...).at n=30A023626
- a(n) = (n^4 + n)/2 (Row sums of an n X n X n magic cube, when it exists).at n=17A027441
- a(n) = (2*n+1)*(3*n+1)*(4*n+1)*(5*n+1).at n=4A033592
- a(n) = (4*n+5)(!^4)/5(!^4), related to A007696(n+1) ((4*n+1)(!^4) quartic, or 4-factorials).at n=4A051617
- Numbers of the form k*(k^3 +- 1)/2.at n=33A057590
- The terms of A073213 (sums of two powers of 17) divided by 2.at n=11A073221
- Denominator of Sum_{k=0..n} binomial(n,k)/(n^2+k^2+1).at n=5A086721
- Numbers which are the sum of two positive cubes and divisible by 17.at n=32A099178
- Magic constant of smallest order-n perfect magic cube.at n=16A109130
- Let a(0)=1. Then a(n) = sums of consecutive strings of positive integers of length 3*n, starting with the integer 2.at n=21A289721
- a(n) is the numerator of Product_{i=0..n-1} (n-i)^((-1)^ceiling(i/2)).at n=20A337354
- a(n) is the denominator of Product_{i=0..n-1} (n-i)^((-1)^ceiling(i/2)).at n=22A337355
- Numbers m such that both m^2-1 and m^2 are refactorable numbers (A033950) and that m^2 has more divisors than m^2-1.at n=20A342970
- a(n) = Sum_{k=1..n} (-1)^(k+1) * floor(n/(2*k-1))^3.at n=34A350163