56889

Appears in sequences

• Hexagonal prism numbers: a(n) = (n + 1)*(3*n^2 + 3*n + 1).at n=26A005915
• a(0) = 0, a(1) = 1; for n>0, a(2*n) = 3*a(2*n-1), a(2*n+1) = 3*a(2*n) - 2*a(n-1).at n=11A129770
• Number of n X 2 binary arrays with all 1s connected, a path of 1s from left column to right column, and no 1 having more than two 1s adjacent.at n=16A163723
• Number of n X 3 binary arrays with every 1 having exactly two king-move neighbors equal to 1.at n=11A183444
• Table read by rows of numbers of unordered pairs of partitions of n-element set that have Rand distance k (n>=2, 1 <= k <= n(n-1)/2).at n=40A192100
• Numbers that set a new integer record for the ratio between the product and the sum of their digits.at n=39A240520
• Numbers of the form A000217(n)*A007494(n) that are divisible by 3.at n=35A295867
• The sum of the numbers on straight lines of incrementing length n when drawn over numbers of the square spiral, where each line contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one line. If two or more lines exist with the same sum the one containing the smallest number is chosen.at n=41A340974