47202

Appears in sequences

• Numbers k such that k and k^2 use only the digits 0, 2, 4, 7 and 8.at n=44A136906
• a(1) = 3, a(n) = round(a(n-1)*3/2) for n > 1, using round-to-even method.at n=24A147790
• n such that A205592(n) > n.at n=21A205594
• The number of permutations of length n sortable by 2 prefix block transpositions.at n=21A228394
• Expansion of Product_{k>=2} (1 + x^k)/(1 - x^k).at n=35A300415
• a(n) = a(n-1)*3/2, if noninteger then rounded to the nearest even integer, with a(1) = 1.at n=26A328262
• a(n) = Sum_{k=0..floor(n/3)} (4*k+1) * binomial(3*n-5*k+1,n-3*k)/(3*n-5*k+1).at n=8A390485