20162

Appears in sequences

• Numerators of continued fraction convergents to sqrt(653).at n=5A042254
• a(n) = 12*a(n-1) - a(n-2), with a(0) = 2 and a(1) = 12.at n=4A087800
• Sums of squares of primitive roots of primes.at n=14A089453
• Number of interior balls in a truncated tetrahedral arrangement.at n=17A092966
• Rows sums of triangle A152072.at n=21A152074
• Sequences A087800 and A077416 interleaved.at n=8A164826
• Number of triples (a, b, c) with gcd(a, b, c) = 1 and -n <= a,b,c <= n.at n=14A175549
• Places of records of A188550.at n=20A188592
• Count of Laurent monomials (including multiplicities), in the Symplectic Schur symmetric polynomials s(mu, n) summed over all partitions mu of n.at n=4A214043
• Least number m such that there exist exactly n pairs of numbers (a,b), 0 < a < b < m, such that a+b, a+m, and b+m are all squares.at n=31A246766
• Numbers k such that both numbers k and k+1 are in the sequence A248903.at n=11A248894
• Numbers with at least three digits and with the property that the sum of the cubes of the first and last digit equals the number obtained when the first and last digits are deleted.at n=36A275343
• a(n) = Sum_{k=1..n} k^2 * (k+1)!.at n=5A280556
• a(n) = n^4 + 8*n^3 + 20*n^2 + 16*n + 2.at n=10A304725
• Number of nX4 0..1 arrays with every element unequal to 0, 1, 2, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=7A317379
• Array read by antidiagonals: T(n,k) is the number of Hamiltonian rooted triangulations with n internal nodes and k + 3 external nodes, n >= 0, k >= 0.at n=24A391153