109830
domain: N
Appears in sequences
- Symmetric secondary structures of RNA molecules with n nucleotides.at n=28A088518
- a(n) = n*(4*n^2 + 2*n + 1).at n=30A110451
- Zero together with the partial sums of A056640.at n=28A274772
- Twin primes x, represented by their average, such that x is the first and x+18 the last of three successive twins.at n=9A350541