28910

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 34.at n=9A031712
• Denominators of continued fraction convergents to sqrt(586).at n=12A042123
• Number of equilateral triangles formed out of matches that can be found in a hexagonal chunk of side length n in hexagonal array of matchsticks.at n=20A045949
• McKay-Thompson series of class 35B for Monster.at n=47A058641
• Numbers k > 1 such that, in base 6, k and k^2 contain the same digits in the same proportion.at n=15A061660
• A recursive triangular sequence with row sums (5^(n - 1)*(n + 3)!)/12: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + 5 *(2 + n) (13 + 5* n)*A(n - 2, k - 1).at n=11A153811
• A recursive triangular sequence with row sums (5^(n - 1)*(n + 3)!)/12: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + 5 *(2 + n) (13 + 5* n)*A(n - 2, k - 1).at n=13A153811
• a(n) = 100*n^2 + 10.at n=17A158492
• Collatz (or 3x+1) trajectory starting at 703.at n=36A161021
• Number of length 5 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than n.at n=27A205342
• McKay-Thompson series of class 35B for the Monster group with a(0) = 1.at n=47A212253
• Number of (w,x,y) with all terms in {0,...,n} and w<x+y and x<=y.at n=40A212982
• Starts of runs of 3 consecutive Zeckendorf-Niven numbers (A328208).at n=25A328210
• Consecutive internal states of the linear congruential pseudo-random number generator (205*s + 29573) mod 139968 when started at 1.at n=5A383127