76527504

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*2^j.at n=37A038292
• Mean integral quotients associated with A048753.at n=32A048754
• a(n) = n^2*3^n.at n=12A127960
• Denominator of Euler(n, 1/18).at n=7A156634
• One quarter the number of nX3 1..4 arrays with no two neighbors of any element equal to each other.at n=13A183355
• Number of 3Xn binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=15A188825
• Number of (n+1)X2 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=6A203819
• Number of (n+1)X8 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=0A203825
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=21A203826
• Number of (n+1)X2 0..1 arrays with the number of clockwise edge increases in every 2X2 subblock differing from each horizontal or vertical neighbor.at n=28A205187
• The sum of the degree of each root node over all rooted labeled trees on n nodes.at n=9A206855
• Triangular array read by rows: T(n,k) is the number of functions f:{1,2,...,n} -> {1,2,...,n} that have exactly k nonrecurrent elements; n>=1, 0<=k<=n-1.at n=43A219694
• Triangular array read by rows: T(n, k) is the number of rooted forests on {1, 2, ..., n} in which one tree has been specially designated that contain exactly k trees; n >= 1, 1 <= k <= n.at n=37A225465
• a(1) = 1, a(2) = 2, a(3) = 5; thereafter a(n) = 2 * Sum_{k=1..n-1} a(k).at n=17A257970
• a(n) = 3^n*Fibonacci(n).at n=12A261397
• a(n) = (n+1) * 3^(n-1).at n=14A288834
• Numbers k such that k^2 is sum of two positive 7th powers.at n=8A291828
• Irregular triangular array, read by rows: row n shows the coefficients of the polynomial p(n,x) defined in Comments.at n=18A329442
• Powers k^m, m > 1, where k is an Achilles number whose squarefree kernel is a primorial.at n=23A389226
• Powers k^m, m > 1, where k is an Achilles number that has a primorial kernel but is not a product of primorials.at n=8A389374