98897

Properties

Appears in sequences

• Start of a string of exactly 3 consecutive (but disjoint) pairs of twin primes.at n=15A035791
• Denominators of continued fraction convergents to sqrt(395).at n=8A041751
• Lesser of the first pair of three successive prime pairs (no isolated primes occur in between). Least of the six successive primes which are member of prime pairs.at n=22A090953
• Primes with digit sum = 41.at n=11A106774
• First of six consecutive primes that are three sets of twin primes.at n=21A136143
• a(0) = 0 and a(n) = (4*n^3 - 12*n^2 + 20*n - 9)/3 for n >= 1.at n=43A174794
• Numbers k such that (9^k + 8^k)/17 is prime.at n=10A187819
• Number of nonsquare simple imperfect squared rectangles of order n up to symmetry.at n=19A220165
• Primes prime(k) such that 2^(k+1) - prime(k) is also prime.at n=13A227126
• Duplicate of A227126.at n=13A244914
• Primes, starting with a(1)=2, whose successive differences are increasing triangular numbers.at n=25A278139
• E.g.f.: exp(-Sum_{n>=1} A001227(n) * x^n).at n=8A294459
• Prime numbersat n=9493