31227

Appears in sequences

• Expansion of 1/((1-x)(1-2x)(1-6x)(1-10x)).at n=4A021202
• Poincaré series [or Poincare series] P(C_{6,2}(0); t).at n=16A124639
• a(n) = Sum_{i=0..n} digsum_4(i)^4, where digsum_4(i) = A053737(i).at n=53A231667
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 323", based on the 5-celled von Neumann neighborhood.at n=35A271255
• Numbers n such that (6k-1) for k=n, n+1, n+2, n+3 are all primes with no primes of the form (6k+1) in between.at n=28A296011
• Expansion of Product_{r = 1 or not a perfect power} 1/(1 - x^r).at n=47A305630
• a(n) is the total number of interior points of over all (>=,>=)-polyominoes of length n.at n=10A382990