30906

Appears in sequences

• Number of essentially different semi-magic squares of order 3 with semimagic sum n.at n=35A122751
• Number of integer-sided hexagons having perimeter n.at n=37A124286
• Classification of bicyclics with the parameter 'alpha' having the value of 3. See the paper by Hendrickson and Parks for details.at n=9A125672
• Expansion of x^4*(2-12*x+24*x^2-8*x^3-41*x^4+57*x^5-16*x^6)/((1-x)*(1-3*x+x^2)*(1-2*x)^6).at n=10A219759
• Triangle read by rows: T(n,k) is the number of descent sequences of length n with exactly k-1 descents, n>=1, 1<=k<=n.at n=72A225624
• Position of the circles with center at a lattice point that contain record numbers of lattice points, in the list of Loeschian numbers A003136.at n=10A230656
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 790", based on the 5-celled von Neumann neighborhood.at n=37A273562
• Sum of the fourth largest parts in the partitions of n into 8 parts.at n=45A308995