19545

Appears in sequences

• sech(sin(sin(x)))=1-1/2!*x^2+13/4!*x^4-373/6!*x^6+19545/8!*x^8...at n=4A012013
• Number of compositions (ordered partitions) of n such that some part is repeated consecutively 6 times and no part is repeated consecutively more than 6 times.at n=14A091620
• Consider the family of multigraphs enriched by the species of ternary sets. Sequence gives number of those multigraphs with 3n arcs.at n=3A099683
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (1, -1, 1), (1, 0, -1), (1, 1, 1)}.at n=8A149613
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, 0), (1, 0, -1), (1, 1, -1), (1, 1, 1)}.at n=8A149679
• Number of partitions of n such that (number parts having multiplicity 1) is not a part and (number of parts > 1) is a part.at n=50A241512
• Number of quanimous subsets of {1..n} containing n, meaning there is more than one set partition with equal block-sums.at n=15A371797