73983
domain: N
Appears in sequences
- Number of triangular polyominoes (or triangular polyforms, or polyiamonds) with n cells (turning over is allowed, holes are allowed, must be connected along edges).at n=14A000577
- a(n) = 1 + Sum(prime(i)*(2*i-1): 1<=i<=n).at n=30A083215
- a(n) = 64*n^2 - 1.at n=33A158684
- Total area of the bounding boxes of all integer partitions of n.at n=23A182094
- Number of -3..3 arrays of length n with the sum ahead of each element differing from the sum following that element by 3 or less.at n=6A221962
- T(n,k)=Number of -k..k arrays of length n with the sum ahead of each element differing from the sum following that element by k or less.at n=42A221967
- Number of -n..n arrays of length 7 with the sum ahead of each element differing from the sum following that element by n or less.at n=2A221970
- Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 537", based on the 5-celled von Neumann neighborhood.at n=16A289041