31527
domain: N
Appears in sequences
- Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k ascents of length 2.at n=42A102402
- Number of Dyck paths of semilength n having no ascents of length 2.at n=12A102403
- Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k DUUU's starting at level 1.at n=33A135331
- Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 3.at n=16A242501
- Number of n-bit numbers that can be written as the concatenation of 0 or more prime numbers (everything written in base 2).at n=17A246807
- Expansion of f(-x^8)^2 / f(-x) in powers of x where f() is a Ramanujan theta function.at n=43A260164
- Decimal representation of the n-th iteration of the "Rule 99" elementary cellular automaton starting with a single ON (black) cell.at n=7A267128