49093

Appears in sequences

• Number of upper triangular zero-one matrices with n ones and no zero rows or columns.at n=10A138265
• Last term where no prime sums occur in A161190 in a 4-diagonal set of 24 terms.at n=29A161193
• Triangle read by rows: T(n,k) is the number of length-n ascent sequences without flat steps, containing k zeros.at n=67A218757
• Number T(n,k) of ascent sequences of length n with exactly k flat steps; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=55A242153
• Main diagonal of array A255551.at n=36A255550
• Records in A352187.at n=59A352191