82081

Appears in sequences

• Crystal ball sequence for squashed {D_5}^* lattice, perhaps the smallest example of a "non-superficial" lattice.at n=10A010025
• Denominators of continued fraction convergents to sqrt(142).at n=9A041261
• Denominators of continued fraction convergents to sqrt(279).at n=13A041525
• Denominators of continued fraction convergents to sqrt(568).at n=9A042089
• a(n) = A047080(2*n, n+1).at n=10A047087
• Numbers k such that 79*2^k-1 is prime.at n=19A050565
• G.f. = continued fraction: A(x)=1/(1-x-x^2-x^3/(1-x^4-x^5-x^6/(1-x^7-x^8-x^9/(...)))).at n=19A088353
• Number of -n..n arrays x(0..3) of 4 elements with zero sum, and adjacent elements not both strictly positive and not both strictly negative.at n=37A199899
• The n-th term is the smallest integer > 1 that is congruent to +1 or -1 modulo k for all 2 <= k <= n.at n=14A317650
• Number of separable partitions of n in which the number of distinct (repeatable) parts <= 6.at n=46A325715
• Integers k such that the number of divisors of k^2 - 1 (A347191) sets a new record.at n=32A347192