51414

Appears in sequences

• Expansion of e.g.f.: LambertW(log(1-x))/log(1-x).at n=6A052813
• Each permutation in the list A060117 converted to Site Swap notation, with "zero throws" (fixed elements) replaced with n, the length of siteswap.at n=26A060495
• Number of ternary squarefree necklaces.at n=41A066297
• a(n) = n*(n+1)*(n+2)*(n+4)*(n+23)/120.at n=17A101855
• Squarefree positive integers of the form u*v*(u^2-v^2) for some integer u,v.at n=26A147779
• [s(k)-s(j)]/10, where the pairs (k,j) are given by A205877 and A205878, and s(k) denotes the (k+1)-st Fibonacci number.at n=34A205880
• Numbers k such that k and k+1 have at least 4 but not both exactly 4 distinct prime factors.at n=2A321494