74678

Appears in sequences

• a(n) = 121*n^2 - 38*n + 3.at n=24A157443
• Number of segments needed to draw (on the infinite square grid) a diagram of regions and partitions of n.at n=39A211026
• Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum 1 3 6 or 8 and every diagonal and antidiagonal sum not 1 3 6 or 8.at n=16A252008
• Number of length n arrays of permutations of 0..n-1 with each element moved by -7 to 7 places and with no two consecutive increases.at n=8A263642
• Positions of powerful terms among the numbers satisfying Euler's condition for odd perfect numbers (A228058).at n=18A388279