25141

Appears in sequences

• Strong pseudoprimes to base 58.at n=20A020284
• Index numbers for palindromic hexagonal numbers.at n=14A054970
• Number of partitions of n having no parts equal to the size of their Durfee squares.at n=46A118199
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 0, -1), (0, 1, 1), (1, 0, 1), (1, 1, 0)}.at n=7A151196
• a(n) = 841*n^3 + 261*n^2 + 28*n + 1.at n=3A166957
• Partial sums of A049486.at n=33A174655
• Number of partitions of n having no parts with multiplicity 10.at n=38A184645
• The least number s having exactly n threes in the continued fraction of sqrt(s).at n=38A206583
• G.f.: Sum_{k>=1} (k^3 * x^(k^2) / Product_{j=1..k} (1 - x^j)).at n=40A333151
• Numbers m such that numbers m, m + 1, m + 2 and m + 3 have k, 2k, 3k and 4k divisors respectively.at n=14A340157
• Numbers k such that k, k+1, k+2, k+3 have 2, 3, 4, 5 prime factors respectively, counted with multiplicity.at n=33A363391
• E.g.f. satisfies A(x) = exp(x) / (1 - x * A(x))^3.at n=4A377743