141246

Appears in sequences

• 2nd elementary symmetric function of the first n+1 positive integers congruent to 2 mod 3.at n=17A024391
• Number of sequences of n integers p(i) i=0..n-1 with 0 <= p(i) <= 4*i and |p(i) - p(i-1)| <= 4.at n=6A180900
• T(n,k)=number of sequences of n integers p(i) i=0..n-1 0<=p(i)<=k*i and |p(i+1)-p(i)|<=k.at n=51A180906
• Number of 0..3 arrays x(0..n-1) of n elements with zero n-1st difference.at n=16A200149
• Triangle T(n,k) of strongly graded (3+1)-free partially ordered sets (posets) on n labeled vertices with height k.at n=23A222864
• Number T(n,k) of endofunctions on [n] where the smallest cycle length equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=30A246049
• Number of endofunctions on [n] where the smallest cycle length equals 2.at n=5A246189
• Number of irredundant sets in the n-dipyramidal graph.at n=19A297712
• The first of three consecutive triangular numbers the sum of which is equal to the sum of three consecutive primes.at n=39A298168