20568

Appears in sequences

• Susceptibility series for b.c.c. lattice.at n=14A002925
• Number of proper T_1-hypergraphs with 3 labeled nodes and n hyperedges.at n=16A056078
• Expansion of x*(1 + x + x^2)/(1 - 2*x + x^5).at n=15A089074
• a(n) = 4*n*(1 + 45*n + 620*n^2).at n=1A167191
• Number of n X 5 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=6A207935
• Number of 7Xn 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 1 0 vertically.at n=4A207943
• Partial sums of A006950.at n=37A233969
• Absolute discriminants of complex quadratic fields with 3-class rank 2.at n=23A242862
• Absolute discriminants of complex quadratic fields with 3-class group of elementary abelian type (3,3) of rank 2.at n=14A242863
• Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) and Hilbert 3-class field tower of exact length 2.at n=6A242864
• Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) and 3-principalization type (4224).at n=3A247690
• Absolute discriminants of complex quadratic fields with 3-class group of type (3,3) whose second 3-class group is located on the sporadic part of the coclass graph G(3,2) outside of coclass trees.at n=9A247691