-20480

Appears in sequences

• Expansion of cosh(tanh(x))/exp(x).at n=10A009170
• Expansion of cosh(x)/exp(tanh(x)).at n=10A009187
• a(n) = -2*a(n-1) + 4*a(n-3), with a(0) = 1, a(1) = -2, a(2) = 4.at n=16A099211
• Determinants of 4 X 4 matrices of 16 consecutive primes.at n=34A118799
• Diagonal of A129819.at n=15A130668
• a(n) = 2^n*(1-n).at n=11A159964
• Inverse binomial transform of A166517.at n=14A166577
• Determinants of the (floor(n/2) - 1) X (floor(n/2) - 1) matrix whose (i,j)-th entry is the intersection number on M_{0,n} of the F-curve F_{1,1,i,n-i-2} and the divisor of the conformal blocks bundle associated to the Lie algebra sl_n, the level 1 and the n-tuple of weights omega_j^n.at n=12A174421
• Triangle, read by rows, T(n, k) = (-1)^k * (n-k+1)^(n+2) * binomial(n+1, k).at n=11A176860