31095

Appears in sequences

• Number of free nonplanar polyenoids with n nodes.at n=7A000953
• a(n) = floor(X/Y) where X = concatenation in decreasing order of (2n)-th even number to (n+1)-th even number and Y = that of first n even numbers in increasing order.at n=18A067092
• Structured pentagonal icositetrahedral numbers (vertex structure 13).at n=14A100167
• Number of base 25 circular n-digit numbers with adjacent digits differing by 3 or less.at n=5A125335
• a(n) = 46*n^2 - 1.at n=25A158634
• Series reversion of eta(-x) - 1.at n=10A176025
• a(0)=0, a(1)=1, a(n) = a(n-1) + (a(n-2) XOR n).at n=21A182537
• Number of (n+3) X 6 binary arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.at n=16A188099
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)*b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=15A295367
• Number of ways to tile a hexagonal strip made up of n equilateral triangles, using diamonds and trapezoids.at n=34A374391