27538

Appears in sequences

• Moebius transform of A001037 (starting at term 0).at n=19A054154
• Poincaré series [or Poincare series] (or Molien series) for a certain six-fold wreath product P_6.at n=42A091769
• (2n+1)-digit anti-palindromic numbers or numberdromes, whose first and last digits add to ten, second and next-to-last add to ten and so on with the central digit a 5.at n=24A093472
• a(n) = least numerator X of the proper fractions X/A097048(n) which need n or more terms as an Egyptian fraction.at n=7A097049
• Number of self-avoiding walks of n steps on a Manhattan square lattice.at n=17A117633
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 315", based on the 5-celled von Neumann neighborhood.at n=33A271248
• a(2n-1) and a(2n) represent the smallest fraction a(2n-1)/a(2n) needing n unit fractions.at n=14A285261
• Number of regions in a regular n-gon with all diagonals drawn whose edges all have a different number of facing edges.at n=46A350718
• Number of integer partitions of n containing three parts (a,b,c) (repeats allowed) such that a + b = c. A variation of sum-full partitions.at n=39A363225
• Numbers k such that sopfr(k + sopfr(k)) = sopfr(k) + sopfr(sopfr(k)), where sopfr = A001414.at n=30A376851