103557

Appears in sequences

• Convolution of Lucas numbers and odd numbers.at n=18A023620
• Triangle read by rows: T(n,k) is the number of secondary structures of size n having k stacks of length 2 (n>=0, k>=0).at n=39A202841
• Number of secondary structures of size n having no stacks of length 2.at n=17A202842
• Odd numbers n containing 65536 as the highest power of 2 in their Collatz (3x+1) iteration.at n=24A247716
• Irregular table read by rows: T(n,k) is the number of k-gons, k>=3, among all distinct circles that can be constructed from the 4 vertices and the equally spaced 4*n points placed on the sides of a square, using only a compass.at n=35A372980