1275989841

Appears in sequences

• a(n) = (9*n)^4.at n=21A017164
• a(n) = (10*n + 9)^4.at n=18A017380
• a(n) = (11*n + 2)^4.at n=17A017416
• a(n) = (12*n + 9)^4.at n=15A017632
• Let H_n = n-th Hilbert matrix; sequence gives 1 / ( det(H_n) * denominator(permanent(H_n)) ).at n=11A061914
• Squares that are both a sum and a difference of two positive cubes.at n=14A230717