19716

Appears in sequences

• Poincaré series [or Poincare series] of Lie algebra associated with a certain braid group.at n=15A007990
• Row sums of triangle A049411.at n=6A049428
• Duplicate of A049428.at n=6A049431
• Even numbers seen in decimal expansion of Pi (disregarding the decimal period) contiguous, smallest and distinct.at n=15A050818
• Even numbers in the decimal expansion of Pi, contiguous and shortest.at n=18A164524
• G.f.: exp( Sum_{n>=1} A174478(n)*x^n/n ) where A174478(n) = Sum_{d|n} d*2^(n/d)*tau(d).at n=11A174477
• Numbers k such that sopfr(k + bigomega(k)) = sopfr(k).at n=27A187877
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) - 1, where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=17A295963