249690

Appears in sequences

• Squarefree numbers k such that alpha(k) = lambda(k), where alpha(k) = LCM of all (p+1) for primes p dividing k, and lambda(k) = A002322(k).at n=22A287514
• Number T(n,k) of colored integer partitions of n using all colors of a k-set such that each block of part i with multiplicity j has a pattern of i*j distinct colors in increasing order; triangle T(n,k), k>=0, k<=n<=A024916(k), read by columns.at n=48A326617
• Number of distinct board states reachable in n jumps, in English Peg Solitaire.at n=9A335656
• Products of 6 distinct primes that are sandwiched between semiprime numbers.at n=32A378627
• a(n) is the least number that is the area of a primitive Pythagorean triangle and is the sum of 2*n consecutive primes.at n=22A387673
• a(n) is the least number that is the area of a primitive Pythagorean triangle and is the sum of 2*n consecutive primes.at n=25A387673