-1853

Appears in sequences

• a(n) is the unique integer such that Sum_{k=0..p-1} b(k)/(-n)^k == a(n) (mod p) for any prime p not dividing n, where b(0), b(1), b(2), ... are Bell numbers given by A000110.at n=7A179508
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 211", based on the 5-celled von Neumann neighborhood.at n=23A270900
• Convolution square of A073592.at n=28A276551
• Numerators of the partial alternating sums of the reciprocals of the alternating sum of divisors function (A206369).at n=38A379621