29427

Appears in sequences

• Denominators of continued fraction convergents to sqrt(512).at n=11A041979
• Triangle read by rows: T(n,k) is the number of Dyck paths of semilength n having k DDUU's starting at level 2.at n=47A135329
• Numbers k such that sum of divisors of k is a square and a triangular number (A000217). That is, numbers k such that A000203(k) is in A001110.at n=8A232847
• Integers of the form A000129(k)/k.at n=5A246693
• Total sum T(n,k) of the sizes of all blocks with maximal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=46A270701
• Total sum T(n,k) of the sizes of all blocks with minimal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=53A270702
• Total sum of the sizes of all blocks with maximal element 2 in all set partitions of {1,2,...,n}.at n=8A270756
• Total sum of the sizes of all blocks with minimal element 9 in all set partitions of {1,2,...,n}.at n=1A270772
• Numbers that are the sum of seven fourth powers in seven or more ways.at n=30A345573
• Numbers that are the sum of seven fourth powers in exactly seven ways.at n=21A345829
• Take the solution to Pellian equation x^2 - 8*n*y^2 = 1 with smallest positive y and x >= 0; sequence gives a(n) = y, or 0 if n is twice a positive square. A368340 gives values of x.at n=63A368339