80988

Appears in sequences

• Number of inequivalent optimal linear codes of length 2n over GF(4).at n=6A082959
• Number of positive integers <= 10^n that are divisible by no prime exceeding 7.at n=19A106600
• a(n) = 1 + Sum_{k=1..n-3} a(k) * a(n-k-3).at n=25A346075