27478

Appears in sequences

• Number of two-rowed partitions of length 3.at n=47A001993
• Composite numbers k such that sigma(k)*(phi(k) + 2) is a square.at n=36A065655
• Number of 6-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.at n=8A187301
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 206", based on the 5-celled von Neumann neighborhood.at n=14A279828
• Numbers k such that k!6 + 27 is prime, where k!6 is the sextuple factorial number (A085158 ).at n=27A288447