118096

Appears in sequences

• Number of cyclic oriented multigraphs on n labeled arcs (with loops).at n=5A020565
• Largest term in periodic part of continued fraction expansion of square root of -1+3^n.at n=19A077627
• Maximal term in Collatz-iteration started at -1+2^n.at n=9A087701
• a(n) = 2*(3^n - 1).at n=10A100774
• Number of palindromes (in base 3) below 3^n.at n=20A117862
• Number of palindromes (in base 9) below 9^n.at n=9A117868
• a(n) = (prime(n)^6 - prime(n)^2)/15.at n=4A138448
• Partial sums of A162436.at n=19A164123
• Number of genus 6, degree n, simply ramified covers of an elliptic curve.at n=1A170995
• The rows of the binomial triangle reduced to balanced ternary lists encoded as decimal numbers.at n=12A182929
• Number of lower triangles of an n X n 0..7 array with each element unequal to the sum mod 8 of its horizontal and vertical neighbors.at n=2A194504
• T(n,k)=Number of lower triangles of an n X n 0..k array with each element unequal to the sum mod k+1 of its horizontal and vertical neighbors.at n=38A194505
• Number of n X 4 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).at n=5A208046
• Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).at n=3A208048
• T(n,k)=Number of nXk 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).at n=39A208050
• T(n,k)=Number of nXk 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any horizontal, vertical or antidiagonal neighbor (colorings ignoring permutations of colors).at n=41A208050
• a(n) is the last number in the (2n+1)-element alternating sequence of x/2 and (3x+1) iterations starting with A277215(n).at n=10A277874
• First differences of A302774; Number of terms in A303762 that have prime(n) as their largest prime factor (A006530).at n=20A303749
• Semi-one numbers: Positive integers k such that exactly half of the integers 1..k have a 1 in their decimal expansion.at n=13A343839
• Numbers that are palindromes in both ternary and balanced ternary representations with representations that are different.at n=18A354886