31329

Appears in sequences

• a(n) = (6*n+3)^2.at n=29A016946
• a(n) = (7*n+2)^2.at n=25A017006
• a(n) = (8*n + 1)^2.at n=22A017078
• a(n) = (9*n + 6)^2.at n=19A017234
• a(n) = (10*n + 7)^2.at n=17A017354
• a(n) = (11*n+1)^2.at n=16A017402
• a(n) = (12*n + 9)^2.at n=14A017630
• Odd refactorable numbers.at n=20A036896
• Square refactorable numbers.at n=27A036907
• Square numbers that are concatenations of two or more prime numbers.at n=28A038692
• Number of partitions satisfying cn(0,5) < cn(2,5) + cn(3,5).at n=39A039841
• Squares with initial digit '3'.at n=15A045786
• Squares having last digit equal to the sum of the other digits.at n=9A054259
• a(n) = A073145(n)^2.at n=21A073702
• Numbers k in A001597 such that 2*k + 1 is prime.at n=40A075079
• Squares of odd semiprimes A046315, odd numbers divisible by exactly 2 primes (counted with multiplicity).at n=33A075730
• Squares of the form 8p - 7, where p is prime.at n=27A110873
• Squares of the form 2*prime(n) - prime(n+1).at n=22A110970
• Terms in A062234 that are powers > 1.at n=33A111005
• RF(3): refactorable numbers with smallest prime factor 3.at n=18A120319