256688

Appears in sequences

• Column 2 of triangle A152798; first differences of A122889.at n=12A152799
• The number of parents of successive approximations used in a greedy approach to creating a Garden of Eden in Conway's Game of Life.at n=24A196447
• Expansion of Product_{k>=1} 1/(1 - x^k)^(d(k)-1), where d(k) = number of divisors of k (A000005).at n=44A318783
• Number of path change-ringing sequences of length n for 4 bells.at n=22A324943
• a(n) = Sum_{-n<i<n, -n<j<n, gcd{i,j}=2} (n-|i|)*(n-|j|).at n=35A331772