1117249

Appears in sequences

• a(n) = n^4 - 2*n^3 + 3*n^2 - 2*n + 1, the Alexander polynomial for reef and granny knots.at n=33A058031
• a(n) = (1-2*n^2)^2.at n=23A239607
• a(n) is the least term of A359260 whose number of divisors is n.at n=8A359261