20226

Appears in sequences

• Denominators of continued fraction convergents to sqrt(181).at n=11A041335
• Convolution of the prime numbers with phi(n).at n=37A086734
• Numbers n such that n/6 and prime(n)+/-n are all primes.at n=28A105550
• Number of partitions of n having no parts with multiplicity 4.at n=38A184639
• Triangle of coefficients of polynomials v(n,x) jointly generated with A209417; see the Formula section.at n=62A209418
• Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^3>x^3+y^3.at n=35A211811
• Number of nX5 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.at n=6A267716
• Number of nX7 0..1 arrays with every repeated value in every row and column greater than the previous repeated value.at n=4A267718
• Number of ways to write n as an ordered sum of 6 prime power palindromes (A084092).at n=39A282845
• Number of nX4 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=6A299124
• Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=3A299127
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=48A299128
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=51A299128
• a(n) = minimal value of n+k (with k >= 1) such that the concatenation of the decimal digits of n,n+1,...,n+k is divisible by n+k+1, or -1 if no such n+k exists.at n=37A332584
• E.g.f. satisfies A(x) = (1 + x)^2 * exp(x * A(x)).at n=5A377827