22886

Appears in sequences

• Integers n such that 4*10^n + 61 is prime.at n=10A110949
• Even numbers k such that if a person is born in year k and lives not more than 100 years, then he never celebrates his prime birthday on a prime year.at n=24A124658
• Triangle T(n,k) of numbers/2 of non-extendable (complete) non-self-adjacent simple paths within a square lattice bounded by rectangles with nodal dimensions n and k, n >= k >= 2.at n=23A213106
• Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.at n=25A278457