67181

Properties

Appears in sequences

• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 3, with initial terms 3,1.at n=7A025230
• Sum of next n integer interprimes (cf. A024675).at n=26A075673
• Smallest of six consecutive primes whose sum of digits is prime.at n=31A106719
• Smallest prime of the set of five consecutive primes whose sum of digits is a set of five distinct primes.at n=9A106816
• Number of rows with the value true in the truth tables of all bracketed formulas with n distinct propositions p_1, ..., p_n connected by the binary connective of m-implication (case 1).at n=8A218186
• a(n) = n!*[x^n](exp(n*x)*BesselI_{1}(2*x)/x), n>=0, main diagonal of A247495.at n=6A247496
• Prime numbersat n=6693