34700

Appears in sequences

• Number of distinct sums <= 1 of reciprocals of positive integers <= n.at n=16A212606
• Numbers k such that 8k+1, 12k+1 and 24k+1 are primes and the last two are also of the form x^2 + 27y^2, so the tetrahedral number T(24k+1) is a Fermat pseudoprime to base 2.at n=24A321867
• Triangle read by rows: T(n,k) is the number of embeddings on the sphere of 2-connected planar graphs with n nodes and k faces up to orientation preserving isomorphisms, n >= 3, k=2..2*n-4.at n=53A342059
• Number of cells in a regular 7-gon after n generations of mitosis.at n=31A349808