100030

Appears in sequences

• Numbers having four 0's in base 10.at n=20A043492
• Least multiple of n in which the n-th digit from left is 3.at n=4A113558
• Number of (w,x,y,z) with all terms in {1,...,n} and w+x>=2y+2z.at n=29A212565
• a(n) = A239460(n) / n^2.at n=29A239463
• Numbers n such that sum of decimal digits of n equals number of prime divisors of n counted with multiplicity and sum of distinct decimal digits of n equals number of distinct primes dividing n.at n=14A280911
• Numbers k such that digit sum of k = number of distinct prime factors of k.at n=29A285494
• Expansion of (Product_{k>0} (1 - x^k) / (1 - x^(5*k)))^5 in powers of x.at n=42A285932
• Number T(n,k) of colored integer partitions of n using all colors of a k-set such that parts i have distinct color patterns in arbitrary order and each pattern for a part i has i colors in (weakly) increasing order; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=41A309973
• Numbers with as many zeros as the sum of their digits.at n=17A354410
• Expansion of (1/x) * Series_Reversion( x * (1-x)^2 / (1+x^2)^3 ).at n=7A369263
• Table read by row, where T(n,k), n>0 and k>0, represents the smallest n-digit number that is the product of k distinct primes and is sandwiched between semiprime numbers, or -1 if no such number exists.at n=21A379167