18283
domain: N
Appears in sequences
- a(n) = [ a(n-1)/a(1) ] + [ a(n-2)/a(2) ] + ... + [ a(1)/a(n-1) ], for n >= 3.at n=31A022870
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 29 ones.at n=3A031797
- T(n,n-4), array T as in A038792.at n=26A038794
- (n^3 - n + 15)/3.at n=37A155757
- G.f. satisfies: A(x) = Sum_{n>=0} x^n*A(x)^[n*phi] where phi = (1+sqrt(5))/2.at n=9A186576
- Total number of parts of multiplicity 5 in all partitions of n.at n=41A222705
- Composites whose prime factorization in base 4 is an anagram of the number in base 4.at n=37A260048
- Numbers k such that the largest prime divisor of k^4+1 is less than k.at n=21A309562
- Triangle read by rows: T(n,k) is the number of lone-child-avoiding rooted trees with n leaves of exactly k colors.at n=29A319376
- Number of series-reduced rooted trees with n leaves of exactly two colors.at n=6A319377
- Prime generating polynomial: a(n) = (4*n - 29)^2 + 58.at n=40A320772