4194300

Appears in sequences

• a(n) = 2*a(n-1) if n odd else 2*a(n-1) + 6.at n=20A014131
• a(n) = 2^n - 4.at n=20A028399
• Average theta series of odd unimodular lattices of dimension 22 (multiplied by 50521).at n=2A029823
• Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to complement.at n=22A045663
• Number of 4-ary sequences with primitive period n.at n=11A054719
• a(n) = 4^n - 4.at n=11A058896
• a(n) is the closest number to 2^n which is divisible by n.at n=21A082894
• a(n) = 2 * A285917(n) for n >=2, a(0) = a(1) = 0.at n=21A120672
• a(n) = largest multiple of n which is <= 2^n.at n=21A128092
• a(n) = the smallest positive multiple of n that has exactly n 1's in its binary representation.at n=19A143115
• a(n) = the largest positive multiple of n with exactly n digits when written in binary.at n=21A162214
• Second diagonal under the main diagonal in A172119 written in a square (see comment).at n=20A173033
• Number of distinct infinite sets of primes congruent to a subset of 1..n mod n.at n=32A216850
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 1", based on the 5-celled von Neumann neighborhood.at n=21A277799
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 49", based on the 5-celled von Neumann neighborhood.at n=21A278468
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 221", based on the 5-celled von Neumann neighborhood.at n=21A279961
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 641", based on the 5-celled von Neumann neighborhood.at n=21A283506
• 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 65", based on the 5-celled von Neumann neighborhood.at n=21A285645
• 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 113", based on the 5-celled von Neumann neighborhood.at n=21A285839
• 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 245", based on the 5-celled von Neumann neighborhood.at n=21A287131