85161

Appears in sequences

• Revert transform of 2*x*(1 - x - x^3 + x^4 - x^5)-x/(1+x).at n=9A049180
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1101-0111-0010 pattern in any orientation.at n=10A147246
• The sum of the numbers that are inside the contour of an n-story Christmas tree drawn at the top of the numerical pyramid containing the positive integers in natural order.at n=11A358994