41577

Appears in sequences

• Fibonacci sequence beginning 5, 13.at n=18A022138
• Sum of squares of the first n primes.at n=21A024450
• Consider the line segment in R^n from the origin to the point v=(2,3,5,7,11,...) with prime coordinates; let d = squared distance to this line from the closest point of Z^n (excluding the endpoints). Sequence gives d times v.v.at n=21A059804
• Numbers n such that both n*Pi and n*e are within 1/sqrt(n) of integers.at n=42A208530
• Number of partitions of n with difference -3 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=49A242689
• 3rd-largest term in n-th row of Stern's diatomic triangle A002487.at n=20A244473
• Index in A092243 where -n first appears.at n=13A269738
• Numerator of the contraharmonic mean of the first n primes.at n=21A296199
• Integers m such that sigma(m) + sigma(m+1) + sigma(m+2) - sigma(m+3) <= 0, where sigma is the sum of divisors.at n=6A348698
• Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=39A391864
• Numbers k such that A003415(k) == A276085(k) (mod 2310) and A003415(k+1) == A276085(k+1) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function.at n=2A391947