534000

Appears in sequences

• Minimal (positive) solution a(n) of Pell equation b(n)^2 - D(n)*a(n)^2 = +4 with D(n)= A077425(n). The companion sequence is a(n)=A077428(n).at n=14A078355
• Irregular triangle read by rows: T(n,k) is the number of permutations in S_n having k stretching pairs.at n=46A216120