-1966

Appears in sequences

• Image of primes (A000040) under "little Hankel" transform that sends [c_0, c_1, ...] to [d_0, d_1, ...] where d_n = c_n^2 - c_{n+1}*c_{n-1}.at n=44A056221
• Expansion of q * (psi(q^5) / psi(q))^2 in powers of q where psi() is a Ramanujan theta function.at n=19A138519
• a(n) = p(n) - p(n-1) - p(n-2) + p(n-5), where p(n) = A000041(n).at n=35A195054
• Expansion of phi(-q^2) / phi(-q^3) in powers of q where phi() is a Ramanujan theta function.at n=50A262967