122401

Properties

Appears in sequences

• Denominators of continued fraction convergents to sqrt(39).at n=6A041065
• Denominators of continued fraction convergents to sqrt(156).at n=6A041287
• Denominators of continued fraction convergents to sqrt(351).at n=12A041665
• Denominators of continued fraction convergents to sqrt(624).at n=6A042199
• Heptanacci-Lucas numbers.at n=17A104621
• Prime Lucas 7-step numbers, A104621.at n=5A105768
• Primes p such that q-p = 42, where q is the next prime after p.at n=28A134120
• Smallest m such that the period of the continued fraction of sqrt(m) is A215485(n); records of A013646.at n=35A215508
• Primes in the union of all n-step Lucas sequences.at n=39A227885
• a(n) = -2*a(n-1) -2*a(n-2) + a(n-3). a(0) = -1, a(1) = 1, a(2) = 1.at n=25A233831
• a(n) = (1 + Sum_{j=1..K-1} a(n-j) + a(n-1)*a(n-K+1))/a(n-K) with a(1),...,a(K)=1, where K=5.at n=13A283330
• Centered hecatonicosachoral numbers.at n=4A362863
• Prime numbersat n=11515