188181

Appears in sequences

• Number of starters in cyclic group of order 2n+1.at n=9A006204
• List of words over {1,8} with equal numbers of 1's and 8's.at n=16A214531
• Number of n X 3 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 4 binary array having a sum of three or less, with rows and columns of the latter in lexicographically nondecreasing order.at n=13A227266