44620

Appears in sequences

• Expansion of 1/(1-x^4-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12).at n=40A017834
• Let Pi= sum(k>=0, u(k)/k!) where u(k)>=0 are integer (u(k)=A075874(k)), then sequence gives values of m such that u(m)=0.at n=11A083303
• Periodicity of the reciprocal of the Mersenne numbers (A001348).at n=8A100491
• a(0) = 0; for n>0, a(n) = period length of the decimal expansion of the number Sum_{i>=1} 2^(-n*i). Also period length of the fractions 1/b(n), where b(n) = 2*b(n-1) + 1, with b(1)=1.at n=22A136273
• G.f.: 1/(1-x) = (1-x*y) * Sum_{k>=0} Sum_{n>=k} T(n,k)*x^n*y^k/(1+x)^(2^n-2^k).at n=30A172400
• G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n/(1+x)^(2^(n+2)-4).at n=5A172403
• Number of n X 7 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=14A280439
• Integers n such that the digit set of n^2 is {0,1,4,9}.at n=38A317579