2396744
domain: N
Appears in sequences
- Nearest integer to 24*(2^n - 1)/n.at n=20A003138
- Integer part of 24(2^n-1)/n.at n=20A003176
- a(n) = ceiling(24(2^n-1)/n).at n=20A003177
- n is equal to the number of 1's in all numbers <= n written in base 8.at n=44A014885
- Number of integers from 1 to 10^(n+1)-1 that lack 0 and 1 as a digit.at n=6A052379
- Number of subsets of {1,2,3,...,n} that sum to 0 mod 7.at n=24A068013
- Triangle read by rows: T(n,k) = (n+1,k)-th element of (M^8-M)/7, where M is the infinite lower Pascal's triangle matrix, 1<=k<=n.at n=29A096042
- Expansion of x*(1+3*x-4*x^2-5*x^3-4*x^6+4*x^5+3*x^4) / ((1+4*x^2)*(1+x^2)*(1-x^2+x^4)).at n=21A112523
- a(n) = (n^n - n)/(n - 1).at n=6A226238
- a(n) = Sum_{k=1..7} n^k.at n=8A228291
- Smallest positive multiple of n whose base 8 representation contains only 0's and 1's.at n=13A244959
- Smallest positive multiple of n whose base 8 representation contains only 0's and 1's.at n=27A244959