26842
domain: N
Appears in sequences
- Numbers k such that the continued fraction for sqrt(k) has period 99.at n=24A020438
- a(1)=1; for n>=2, a(n)=sum(1<=i<=j<=n-1, gcd(a(i),a(j))).at n=14A099050
- a(n) = sum of unsigned coefficients in (1+x+x^2-x^3)^n.at n=10A192210
- Number of ways to remove n oranges from an infinite stack of oranges whose m-th layer is an m X (m+1) rectangle.at n=14A274594
- Expansion of Product_{k>=1} B(x^k), where B(x) is the g.f. of A003114.at n=31A327690
- Numbers m with decimal expansion (d_k, ..., d_1) such that d_i = m ^ i mod 10 for i = 1..k.at n=38A344749
- Number of subsets of Z_n such that every ordered pair of distinct elements has a different sum.at n=23A382400
- Consecutive states of the linear congruential pseudo-random number generator 254*s mod (2^16+1) when started at s=1.at n=35A384934