36895

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 25 ones.at n=19A031793
• Numbers n such that 103*2^n-1 is prime.at n=24A050577
• Pentagonal numbers (A000326) whose digit reversal is a prime.at n=23A115707
• Pentagonal numbers with prime indices.at n=36A116995
• Start with 1 and repeatedly reverse the digits and add 66 to get the next term.at n=22A118200
• Expansion of (1/2)*(1/(x+1)+1/(sqrt(-3*x^2-2*x+1))).at n=12A246437
• Number of factorizations of m^2 into 2 factors, where m is a product of exactly n distinct primes and each factor is a product of n primes (counted with multiplicity).at n=12A257520
• a(n) = 16*n^3 + 10*n^2 + 4*n + 1.at n=13A272130
• The first of two consecutive pentagonal numbers the sum of which is equal to the sum of two consecutive primes.at n=3A298463
• Pentagonal numbers which are products of three distinct primes.at n=36A381650