43306

Appears in sequences

• Number of distinct degree sequences among all connected graphs with n nodes.at n=10A007721
• Expansion of (1+3*x+9*x^2+9*x^3+9*x^4+3*x^5+x^6) /( (1+x)^2 * (1-x)^5 ).at n=18A175898
• a(n) = (35*n^4 - 105*n^3 + 160*n^2 - 120*n + 36)/6.at n=9A181342
• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having an odd sum, with rows and columns of the latter in lexicographically nondecreasing order.at n=14A227675
• Expansion of 1 / (1 - x - x^4 + x^9) in powers of x.at n=39A233522
• Indices of records in A360519.at n=58A361108