101424

Appears in sequences

• Number of pseudo-square parallelogram (psp) polyominoes by semiperimeter.at n=17A244521
• T(n,k) is the number permutations p of [n] that are k-dist-increasing but not j-dist-increasing for any j<k, where p is j-dist-increasing if j>=0 and p(i)<p(i+j) for all i in [n-j]; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=60A370507