1416317954

Appears in sequences

• A Lucas-Lehmer sequence: a(0) = 4; for n>0, a(n) = a(n-1)^2 - 2.at n=4A003010
• a(n) = 4*a(n-1) - a(n-2) with a(0) = 2, a(1) = 4.at n=16A003500
• a(n) = 14*a(n-1) - a(n-2); a(0) = 2, a(1) = 14.at n=8A067902
• Residues of the Lucas - Lehmer primality test for M(31) = 2147483647.at n=4A129226
• Recurrence equation a(n+1) = a(n)^4 - 4*a(n)^2 + 2 with a(0) = 4.at n=2A219163
• A modified Engel expansion for sqrt(3) - 1.at n=14A220335
• Number of perfect matchings in the twisted graph (C_4 X C_n)_(1234).at n=15A220867