31183

Properties

Appears in sequences

• Left diagonal of partition triangle A047812.at n=37A007042
• Reflectable emirps.at n=27A007628
• Let p = prime(sigma(n)) and q = prime(phi(n)), then p is in the sequence if p-q = 6.at n=37A103176
• Number of compositions of n with c(1) = 1, c(i+1) - c(i) <= 1, and c(i+1) - c(i) != 0.at n=39A238870
• Primes of the form 6*p + 1 with p prime that are also of the form x^2 + 27*y^2 and congruent to 7 mod 24.at n=36A256172
• Number of partitions of n with up to six distinct kinds of 1.at n=29A320693
• Nonpalindromic primes whose binary expansion, interpreted as a base-10 number, yields a palindromic prime.at n=5A345307
• Number of integer partitions of n whose product of parts is not n.at n=39A379736
• Number of integer partitions of n not forming an arithmetic progression with offset 0.at n=39A389920
• Prime numbersat n=3360