84817
domain: N
Appears in sequences
- Number of partitions satisfying cn(0,5) <= cn(1,5) + cn(2,5) and cn(0,5) <= cn(4,5) + cn(2,5) and cn(0,5) <= cn(1,5) + cn(3,5) and cn(0,5) <= cn(4,5) + cn(3,5).at n=46A039843
- Quartan semiprimes: semiprimes of the form x^4 + y^4, x>0, y>0.at n=38A182277
- Number of Carmichael numbers (A002997) less than 2^n.at n=48A225005
- Number of (n+1)X(6+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one.at n=1A231762
- T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one.at n=22A231764
- Number of (2+1)X(n+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one.at n=5A231766
- Centered octahemioctahedral numbers: a(n) = (4*n^3+24*n^2+8*n+3)/3.at n=38A274974