23603

Properties

Appears in sequences

• Number of partitions of n in which no parts are multiples of 3.at n=50A000726
• a(n) = floor(n*phi^14), where phi is the golden ratio, A001622.at n=28A004929
• a(1) = 2, a(n+1) = smallest prime of the form a(n) + k*prime(n+1), k >1.at n=36A085041
• Primes which are the sum of three positive 4th powers.at n=33A085318
• n^2-79*n+1601 as n runs through the lucky numbers.at n=37A087867
• a(1) = 3; for n > 1 a(n) is the least prime of form a(n-1) + k*prime(n-1) with k > 0.at n=37A095184
• Primes p of the form a^4+b^4+c^4 with a,b,c>=1 such that a^2+b^2+c^2 is another prime < p.at n=25A126117
• Prime numbers that are the sum of three distinct positive fourth powers.at n=21A126657
• Supersafe primes.at n=39A181841
• a(n) = prime(n*prime(n)).at n=25A228529
• G.f. (4*x+3)/(2*(x+1))*(1+1/sqrt(-4*x^4-4*x^3+1)).at n=20A247169
• a(n) = (1/4)*n^4 - (1/2)*n^3 + (3/4)*n^2 - (1/2)*n + 41.at n=17A259552
• Safe primes p such that p + 24 is also a safe prime.at n=20A274381
• Numbers that are the sum of fourth powers of three distinct positive integers in arithmetic progression.at n=24A306214
• Numbers that are the sum of eight fourth powers in ten or more ways.at n=26A345585
• Numbers that are the sum of eight fourth powers in exactly ten ways.at n=17A345842
• Primes having only {0, 2, 3, 6} as digits.at n=32A386043
• Prime numbersat n=2626