73648

Appears in sequences

• Number of permutations of length n which avoid the patterns 1234, 1432, 2413.at n=10A116801
• Numbers n such that n-th and (n+1)-th primes are in A125146.at n=11A128120
• Array read by antidiagonals: T(n,k) is the number of k-tuples of involutions on [n] that pairwise commute.at n=62A362824
• Number of ordered triples of involutions on [n] that pairwise commute.at n=7A362825