191373

Appears in sequences

• a(1) = 9, a(n) = concatenation of two closest factors of a(n-1) whose product equals a(n-1) or if a(n-1) is a prime then the concatenation of 1 and a(n-1).at n=7A063423
• Number of partitions of n into 9 parts such that every i-th smallest part (counted with multiplicity) is different from i.at n=36A244245