63510

Appears in sequences

• a(n) = Sum_{i=1..floor((n+1)/4)} a(2*i-1) * a(n-2*i+1), with a(1)=a(2)=1 and a(3)=6.at n=15A024731
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 84.at n=5A031762
• Numbers k > 1 such that, in base 5, k and k^2 contain the same digits in the same proportion.at n=33A061659
• Starts of runs of 3 consecutive Lucas-Niven numbers (A351714).at n=16A351716
• Starts of runs of 4 consecutive integers that are all terms in A381581.at n=5A381584
• Consecutive states of the linear congruential pseudo-random number generator (421*s + 17117) mod 81000 when started at s=1.at n=37A385338