79212

Appears in sequences

• Sum of staircase twin primes according to the rule: top * bottom - next top.at n=18A135285
• Molecular topological indices of the graph join C_n + C_n of cycle graphs.at n=20A192848
• Number of 5-element subsets of [n] having a prime element sum.at n=31A320680
• First term of n-th differences of the sequence x^(x-1) for x >= 1.at n=6A377535
• Triangular array read by rows. T(n,k) is the number of partial functions f on [n] such that there are exactly k points in [n] that are neither in the domain of f nor in the image of f, n>=0, 0<=k<=n.at n=21A377763