40965

Appears in sequences

• a(n) = floor(a(n-1)*3/2) with a(1) = 2.at n=25A061418
• Number of numbers whose base-3/2 expansion (see A024629) has n digits.at n=25A081848
• a(1) = 1; for n > 1: if n is even, a(n) = least k > 0 such that sum(i=1,n/2,a(2*i-1))/sum(j=1,n,a(j))>=1/4, or 1 if there is no such k; if n is odd, a(n) = largest k > 0 such that sum(i=1,(n+1)/2,a(2*i-1))/sum(j=1,n,a(j))<=1/3, or 1 if there is no such k.at n=53A104740
• Number of base 15 circular n-digit numbers with adjacent digits differing by 4 or less.at n=5A125352
• a(n) = 5*2^n + 5.at n=13A231643
• Number of length n+2 0..4 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.at n=16A248429