261668

Appears in sequences

• a(n) is the number of binary strings of length n+3 such that there exists a subsequence of length 4 with 2 ones in it.at n=14A118648
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 297", based on the 5-celled von Neumann neighborhood.at n=17A287509
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 429", based on the 5-celled von Neumann neighborhood.at n=17A288192