87781

Appears in sequences

• a(n) = 12^n - 11^n.at n=5A016197
• a(n) = (n+1)^5 - n^5.at n=11A022521
• Number of Young tableaux A(n,k) with n k-length rows, increasing entries down the columns and monotonic entries along the rows (first row increasing); square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=48A208615
• Number of Young tableaux with 3 n-length rows, increasing entries down the columns and monotonic entries along the rows (first row increasing).at n=6A208616
• Number of Young tableaux with n 6-length rows, increasing entries down the columns and monotonic entries along the rows (first row increasing).at n=3A208626
• 1/4 the number of n X n 0..3 symmetric matrices with every element equal to one, two, three or four horizontal and vertical neighbors.at n=4A211094
• Number of distinct sums <= 1 of distinct reciprocals of integers <= n.at n=22A212607
• a(n) = 12^n mod 11^n.at n=5A245805
• Number of n-step self-avoiding walks on the half-Manhattan lattice with no non-contiguous adjacencies.at n=17A336726
• Table read by rows: row n is the unique primitive Pythagorean triple (a,b,c) such that (a-b+c)/2 = A002378(n) and its long leg and hypotenuse are consecutive natural numbers.at n=41A385022