46025

Appears in sequences

• sech(cos(x)*sin(x))=1-1/2!*x^2+21/4!*x^4-717/6!*x^6+46025/8!*x^8...at n=4A012479
• Numbers k such that phi(k) is equal to A008473(k-1).at n=10A039780
• Triangle read by rows: T(n,k) = coefficient of x^k in the polynomial p[n,x] defined by p[0,x]=1, p[1,x]=1+x and p[n,x]=(1+x)(2-x)(3-x)...(n-x) for n >= 2 (0 <= k <= n).at n=50A123361
• Let spm(n) be the sum of all prime factors of n counted with multiplicities (A001414); sequence gives numbers n such that spm(n+spm(n)) divides both n and n+spm(n).at n=22A131564
• Integers arising in A133677.at n=30A133645
• a(n) = (2*n^3 + 5*n^2 + 5*n)/2.at n=34A162267
• Odd numbers n containing 65536 as the highest power of 2 in their Collatz (3x+1) iteration.at n=11A247716
• a(n) = n^4/6 - 2*n^3/3 - n^2/6 + 5*n/3 + 1.at n=23A299198