34406

Appears in sequences

• a(n) = n! - Sum_{k=0..n-1} k!.at n=8A065355
• A B3-sequence: a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that the sums of any three terms are all distinct.at n=25A096772
• Array read by antidiagonals: T(m,n) = Sum_{i=1..m} i*(n-1+i)!.at n=26A100630
• Table read by antidiagonals: T(m,n) gives the ordinal number in the table of permutations of length n+1 of the permutation which reverses the first m+1 items on a list of length n+1, leaving the remaining items unaltered. For example, T(5,7) is 28494 and the 28494th row of the permutation table of order 8 is 5 4 3 2 1 0 6 7.at n=55A100711
• a(n) is the rank of row n of A375301 in a lexicographic permutation of [1, ..., n].at n=7A375302