99644

Appears in sequences

• a(n) = floor( exp(19/21)*n! ).at n=7A030841
• Numbers k such that k divides the (k+1)st Lucas number.at n=12A094397
• Suppose you take the ten digits 0..9, arrange them in any order and then either concatenate adjacent ones or separate them with a plus or minus sign, e.g., 98-76+5-4-32+10 or 9-8-765+3041-2. The first expression totals to "1", the second example totals to "2275". This sequence lists the positive integers that cannot be expressed in this way.at n=3A108224
• Even composites in A145832 with at least three distinct prime factors.at n=33A145916
• Even composite integers m such that U(m)^2 == 1 (mod m) and V(m) == 3 (mod m), where U(m)=A001906(m) and V(m)=A005248(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=3 and b=1, respectively.at n=16A337777