22153

Properties

Appears in sequences

• Incorrect duplicate of A297408.at n=25A007355
• First occurrence of exactly n identical terms in A007448.at n=9A016046
• Numbers whose set of base-9 digits is {3,4}.at n=33A032833
• Lesser member p of cousin primes (p, p+4) such that (p+1, p+2, p+3) all have the same number of prime divisors (counted with multiplicity).at n=18A094230
• Primes p such that sigma(k) = phi(prime(k)-1), where p = prime(k).at n=17A107815
• Beginnings of maximal chains of primes with four members (three links).at n=9A152867
• a(n) = (4*n^3 - 6*n^2 + 8*n + 3)/3.at n=26A161712
• Triangle of coefficients of polynomials u(n,x) jointly generated with A209171; see the Formula section.at n=48A209170
• Primes with nonzero digits such that sum of cubes of digits equal to square of sums.at n=6A225567
• Numbers n such that 13^n is the highest power of 13 dividing A240751(n).at n=12A286007
• Primes p such that the sum of the squares of digits of p equals the sum of digits of p^2.at n=7A290972
• Primes with record values of corresponding Fortunate numbers (A005235).at n=45A317479
• Number of partitions of 2n into exactly n nonzero decimal palindromes.at n=44A319454
• Number of integer partitions of n of even length whose greatest multiplicity is at most half their length.at n=43A338914
• Smaller term p1 of the first of two consecutive cousin prime pairs (p1,p1+4) and (p2,p2+4) such that the distance (p2-p1) is a square.at n=21A339084
• Primes p such that p+4, 3*p+4 and 3*p+8 are also prime.at n=12A352170
• Prime numbers followed by two consecutive numbers which are products of four distinct primes (or tetraprimes).at n=4A362578
• Prime numbersat n=2484