22034

Appears in sequences

• a(0) = 1, a(n) = 17*n^2 + 2 for n>0.at n=36A010007
• Number of rooted identity trees with n nodes and 5 leaves.at n=8A055330
• Structured truncated tetrahedral numbers.at n=22A100156
• Number of 1's in all partitions of n with no even parts repeated.at n=34A117276
• Expansion of f(-x)^11 / f(-x^3) + 27 * x * f(-x^3)^11 / f(-x) in powers of x where f() is a Ramanujan theta function.at n=36A258724
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 533", based on the 5-celled von Neumann neighborhood.at n=27A272784
• Number of states in the evolutionary spatial prisoner's dilemma with n players.at n=25A308620
• Let t_k denote the triangular number k*(k+1)/2. Suppose 0 < x < y < z are integers satisfying t_x + t_y = t_p, t_y + t_z = t_q, t_x + t_z = t_r, for integers p,q,r. Sort the triples [x,y,z] first by x, then by y. Sequence gives the values of q.at n=47A332592
• a(n) = n * Sum_{d|n} binomial(d+2,3)/d.at n=45A343544