90112

Appears in sequences

• a(n) = 11*2^n.at n=13A005015
• n is equal to the number of 1's in all numbers <= n written in base 8.at n=19A014885
• Numbers whose prime factors are 2 and 11.at n=29A033848
• Triangle read by rows: T(n,k) (n >= 2, 0 <= k <= n) = number of over-all crude totals of unbranched k-5-catapolyheptagons.at n=43A038195
• 14-almost primes (generalization of semiprimes).at n=9A069275
• a(n) is the number of occurrences of 7's in the palindromic compositions of 2*n-1, or also, the number of occurrences of 8's in the palindromic compositions of 2*n.at n=12A079861
• Triangle of coefficients in expansion of sinh^2(n*x) in powers of sinh(x).at n=31A082649
• Denominators of the Taylor series of arccosh(z)/sqrt(2(x-1)) about 1.at n=5A091019
• Expansion of (1-4x)/((1+4x)(1-8x)).at n=6A091905
• Structured rhombic triacontahedral numbers (vertex structure 7).at n=21A100165
• Smallest number beginning with 9 and having exactly n prime divisors counted with multiplicity.at n=13A106429
• a(0)=44; if n odd, a(n) = a(n-1)/2, otherwise a(n) = 4*a(n-1).at n=22A108213
• a(0)=44; if n odd, a(n) = a(n-1)/2, otherwise a(n) = 4*a(n-1).at n=25A108213
• a(0)=22; if n odd, a(n) = a(n-1)/2, otherwise a(n) = 4*a(n-1).at n=27A108732
• a(0)=22; if n odd, a(n) = a(n-1)/2, otherwise a(n) = 4*a(n-1).at n=24A108732
• Triangle read by rows: T(n, k) is the coefficient of x^k in the polynomial 1 - ChT(n, x^(1/2))^2, where ChT(n, x) is the n-th Chebyshev polynomial of the first kind, evaluated at x (0 <= k <= n).at n=41A123588
• C(n+9, 9)*(n+5)*(-1)^(n+1)*256/5.at n=3A138333
• Triangle T(n, k) = 2^(n+k-2)*prime(k) + (n mod 2) if k <= floor(n/2) otherwise 2^(2*n-k-2)*prime(n-k) + (n mod 2), with T(n, 0) = T(n, n) = 1, read by rows.at n=60A157192
• a(1) = 1. For n >=2, a(n) = the smallest integer > a(n-1) such that both a(n) and a(n)-a(n-1) have the same number of (non-leading) 0's when they are represented in binary.at n=28A160825
• Triangle read by rows in which row n lists n+1 terms, starting with n^5 and ending with n^6, such that the difference between successive terms is equal to n^5 - n^4.at n=38A163285