51853

Properties

Appears in sequences

• Smallest prime == 1 (mod f(n)), where f(n) = concatenation n,n-1,...,3,2,1.at n=3A109948
• a(n) = n-th smallest prime congruent to 1 modulo prime(n).at n=34A234387
• Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that max(x(i) - x(i-1)) is a part of p.at n=48A241735
• Denominators of lower primes-only best approximates (POBAs) to Pi; see Comments.at n=21A265809
• Denominators of primes-only best approximates (POBAs) to Pi; see Comments.at n=24A265813
• Triangle of coefficients T(n,k) in g.f. A(x,y) satisfying Sum_{n=-oo..+oo} (-1)^n * (x^n + y*A(x,y))^n = 1 + (y+2)*Sum_{n>=1} (-1)^n * x^(n^2), for n >= 1, as read by rows.at n=69A370040
• Prime numbersat n=5305