48871

Properties

Appears in sequences

• Absolute value of Glaisher's alpha(n).at n=40A002290
• Quintan primes: p = (x^5 - y^5)/(x - y).at n=21A002649
• Width of the bit-masks A068221 & A068222 (number of digits in A068223 & A068224).at n=14A068739
• Number of 2-sparse nonoverlapping partitions of n.at n=12A099950
• Primes of the form 18k+1 generated recursively. Initial prime is 19. General term is a(n) = Min {p is prime; p divides (R^9 - 1)/(R^3 - 1); p == 1 (mod 9)}, where Q is the product of previous terms in the sequence and R = 3*Q.at n=7A125043
• Centered triangular numbers that are prime.at n=40A125602
• Primes of the form (14^n - 3^n)/11.at n=1A138942
• Number of (4+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=27A258557
• Primes p such that A001414(p+1) = A001414(p-1) - 1.at n=13A342823
• For n > 2, a(n) is the least prime p > a(n-1) such that a(n-1) + p is divisible by a(n-2); a(1) = 2, a(2) = 3.at n=12A359483
• Prime numbersat n=5027