28086

Appears in sequences

• a(2*n) = floor( 17*2^n/14 ), a(2*n+1) = floor( 12*2^n/7 ).at n=29A003143
• a(n) = ceiling(24(2^n-1)/n).at n=13A003177
• Base-2 digits are, in order, the first n terms of the periodic sequence with initial period [1,1,0].at n=15A033129
• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,3.at n=7A037604
• Numbers that are repdigits in base 8.at n=34A048333
• Triangle read by rows: T(n,k) = (n+1,k)-th element of (M^8-M)/7, where M is the infinite lower Pascal's triangle matrix, 1<=k<=n.at n=16A096042
• a(n) = 6*(8^n - 1)/7.at n=5A125837
• Numbers having in binary representation exactly two ones in three consecutive digits.at n=26A173593
• 1/729 the number of (n+2)X(n+2) 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=1A185882
• 1/729 the number of (n+2)X4 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=1A185884
• T(n,k)=1/729 the number of (n+2)X(k+2) 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace.at n=4A185891
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 190", based on the 5-celled von Neumann neighborhood.at n=41A270683
• Numbers k such that (rol(k) XOR ror(k)) = k, where rol = A006257 and ror = A038572 are rotations of binary digits by one place to the left and right, and XOR is the binary exclusive-or operator.at n=10A273050
• Fixed points of A341915.at n=10A341943
• Triangle T(n,k) in which the n-th row encodes the inverse of a 3n X 3n Jacobi matrix, with 1's on the lower, main, and upper diagonals in GF(2), where the encoding consists of the decimal representations for the binary rows (n >= 1, 1 <= k <= 3n).at n=44A363146
• Numbers whose binary expansion consists of alternating runs of 1's and 0's where each run of 0's is exactly one shorter than the preceding run of 1's, and the expansion ends with a 0-run.at n=36A387270