131009

Properties

Appears in sequences

• Primes of the form 2^j - 2^k + 1, where j > k >= 0.at n=37A152449
• Start with a single square; at n-th generation add a square at each expandable vertex; a(n) is the sum of all label values at n-th generation. (See comment for construction rules.)at n=14A247618
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 573", based on the 5-celled von Neumann neighborhood.at n=16A283082
• Primes prime(k) such that prime(k) + 2*prime(k+1), prime(k) + 2*prime(k+1) + 4*prime(k+2) and prime(k) + 2*prime(k+1) + 4*prime(k+2) + 8*prime(k+3) are all prime.at n=15A337214
• Prime numbersat n=12245