139129

Appears in sequences

• a(n) = (10*n + 3)^2.at n=37A017306
• a(n) = (11*n + 10)^2.at n=33A017510
• Composite numbers k such that the sum of the divisors of k^2 is a prime.at n=32A065405
• Prime powers of prime numbers such that the sum of its digits is also prime power of prime number.at n=17A076705
• Square of primes of the form 4k+1 (A002144).at n=34A080109
• Numbers m such that Sum_{p prime|m} p^r(p) = m, where r(p) is the least positive primitive root of p (A001918).at n=36A101051
• Squares of the form 5p - 6, where p is prime.at n=20A110481
• Square numbers which are the sum of distinct double factorials (A006882).at n=28A115648
• Squares of the form k^2+(k+23)^2 with integer k.at n=6A156572
• a(n) = 34*a(n-1)-a(n-2)-4232 for n > 2; a(1)=289, a(2)=4225.at n=2A156575
• Squares in A111153.at n=19A175255
• Squares n^2 that become prime after omitting all ones in their decimal expansion.at n=9A175983
• Squares that are a sum of two Fibonacci numbers plus the square of a Fibonacci number.at n=31A179459
• 3 x 3 magic square containing seven squares, read by rows.at n=0A221669
• Prime powers (A025475) representable as triangular(k)+1.at n=6A226102
• Numbers n such that the product of their proper divisors is a palindrome > 1 and not equal to n.at n=16A229970
• Squares representable as b! + triangular(c).at n=31A230365
• Given g.f. A(x), let B(x) = 1 + x*A(x)^2 and C(x) = 1 + x*A(x)^3, then B(x*C(x)) = C(x) and C(x/B(x)) = B(x).at n=6A249791
• Squares that differ from a triangular number by 1.at n=11A299921
• Square numbers that are also central polygonal numbers (i.e., square numbers found in the Lazy Caterer's sequence).at n=7A306561