49260

Appears in sequences

• Let Do(n) = A006566(n) = n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k > 0, with Do(i) = Do(j) + Do(k), ordered by increasing i; sequence gives k values.at n=29A053019
• Numbers n such that sum k/d(k) is an integer, where d(k) is the k-th divisor of n (the divisors of n are in decreasing order).at n=8A073083
• a(n) = 49n^2 - 28n - 20.at n=31A118058
• Total number of inversions in all compositions of n into distinct parts.at n=25A271372
• Number of unordered pairs of 4-colorings of an n-wheel that differ in the coloring of exactly one vertex.at n=10A309379
• Total sum of parts which are squares in all partitions of n.at n=30A342228
• Expansion of Sum_{k>=0} k^4 * x^k/(1 - k * x).at n=7A349879