1611504

Appears in sequences

• a(n) is the number of sets of natural numbers [a,b,c,d,e] that can be produced with the numbers [0..n] such that the values of all the distinct parenthesized expressions of a-b-c-d-e are different.at n=18A054026
• Gromov-Witten invariants of intersection type (2,2,3).at n=2A090008
• Complete list of numbers of twisted cubics on a general Calabi-Yau threefold which is a complete intersection in some projective space.at n=3A331445