43969

Properties

Appears in sequences

• a(n) = n^4 - 6*n^3 + 12*n^2 - 4*n + 1.at n=16A027382
• Least k such that gcd(prime(k+1)-1, prime(k)-1) = 2n.at n=28A067605
• a(n) = A104908(n) - 10*A104863(n).at n=36A104909
• Number of partitions of n^2 into at most 10 square parts.at n=33A255214
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood.at n=40A270893
• Positive integers m with m^k - 1 (k = 1,...,13) all practical.at n=37A294307
• Primes that can be constructed by concatenating two squares >= 4.at n=37A345314
• a(n) is the largest prime factor of n*2^n-1.at n=27A367003
• Prime numbersat n=4575