60842
domain: N
Appears in sequences
- a(0) = 1, a(n) = 40*n^2 + 2 for n>0.at n=39A010022
- Number of positions of the 15-puzzle at a distance of n moves from an initial state with the empty square in one of the corners, in the single-tile metric.at n=15A089484
- a(n) is the binary XOR of all n-bit prime numbers.at n=21A298817
- a(n) = Sum_{k=1..n} (k/gcd(n, k))^3.at n=25A343513