22599

Appears in sequences

• n+8*C(n,2)+30*C(n,3)+62*C(n,4)+75*C(n,5)+30*C(n,6).at n=9A006550
• Numbers k that divide the (right) concatenation of all numbers <= k written in base 3 (most significant digit on left).at n=25A029448
• Denominators of continued fraction convergents to sqrt(553).at n=11A042059
• Odd numbers divisible by exactly 7 primes (counted with multiplicity).at n=22A046320
• Numbers n such that n | 5^n + 3^n +1.at n=15A057829
• (n-1)-st elementary symmetric function of the first n terms of A010684.at n=14A203230
• Number of binary words of length n containing no subword 10001.at n=15A210003
• Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y<=3z.at n=18A212521
• Values of n such that there are exactly 7 solutions to x^2 - y^2 = n with x > y >= 0.at n=34A257414
• a(0) = 9; thereafter a(n+1) = 3*a(n)^4 + 4*a(n)^3 for n >= 1.at n=1A333554
• Numbers k such that k and k+1 are products of at least 6 primes.at n=30A346207
• Numbers k which are the product of a cube greater than 1 and a prime, and where k-1 and k-2 are semiprimes.at n=34A350284
• Composite numbers k such that the digits of k are in nondecreasing order while the digits of the concatenation of k's ascending order prime factors, with repetition, are in nonincreasing order.at n=29A372280
• a(n) = (3*n^5 + 5*n^3)/8.at n=8A372583
• Numbers k that divide the k-th central Delannoy number.at n=33A372901