23136

Appears in sequences

• "BHJ" (reversible, identity, labeled) transform of 1,0,1,0... (odds).at n=7A032074
• a(n) = n * [1 + sum(k=1 to n) prime(k)].at n=24A083725
• Triangle read by rows: T(n,k) is number of Grand Motzkin paths of length n having k returns to the x-axis (i.e., d or u steps hitting the x-axis).at n=44A109193
• Record values in A046641.at n=35A145771
• Number of permutations of 0..n-1 with all sums of 4 adjacent terms unique.at n=7A152332
• Number of permutations of floor(i*9/8), i=0..n-1, with all sums of 4 adjacent terms unique.at n=7A152349
• a(1)=3, a(2)=2, a(n)=3*a(n-1) + 2*a(n-2).at n=8A189736
• Triangle read by rows: T(n,k) is the number of length n left factors of Dyck paths having k UUDD's, where U=(1,1) and D=(1,-1).at n=51A191793
• Number of fixed poly-[3^4.6]-tiles (holes allowed) with n cells.at n=7A197160
• Number of 0..7 arrays x(0..n+1) of n+2 elements without any two consecutive increases.at n=2A200784
• T(n,k) is the number of arrays of n+2 elements from {0,1,...,k} with no two consecutive ascents.at n=38A200785
• Number of 0..n arrays x(0..4) of 5 elements without any two consecutive increases.at n=6A200787
• Number of ordered interval sequences in Schoenberg 12-tone rows that contain n unique intervals.at n=10A215606
• Number of (n+2) X (3+2) 0..1 arrays with no 3 X 3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 0 or 3 and no column sum 0 or 3.at n=18A258961
• G.f. A(x) satisfies: A(x - x*A(x)) = x + x*A(x).at n=6A276358
• Erroneous version of A354380.at n=4A337867
• -a(n)/7! is the coefficient of x^7 in the Taylor expansion of the k-th iteration of sin(x).at n=8A366827