80526

Appears in sequences

• Numbers n such that n | 11^n + 11.at n=22A015903
• a(n) = (11^n + 1)/2.at n=5A034659
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,27.at n=27A064250
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,45.at n=26A064259
• The terms of A073211 (sums of two powers of 11) divided by 2.at n=15A073219
• A triangle of polynomial coefficients: q(x,n)=-((x - 1)^(2*n + 1)/x^n)*Sum[(2*k + 1)^n*Binomial[k, n]*x^k, {k, 0, Infinity}]; p(x,n)=q(x,n)+x^n*q(1/x,n).at n=15A155915
• A triangle of polynomial coefficients: q(x,n)=-((x - 1)^(2*n + 1)/x^n)*Sum[(2*k + 1)^n*Binomial[k, n]*x^k, {k, 0, Infinity}]; p(x,n)=q(x,n)+x^n*q(1/x,n).at n=20A155915
• Number of compositions of even natural numbers into 5 parts <= n.at n=10A191484
• Numbers of the form 7^x + y^7 with x, y >= 0.at n=34A250715
• Number of partitions of n^5 into at most two parts.at n=11A274325
• Numbers n such that n^2 = a^2 + b^5 (with integers a, b > 0) and gcd(a, b, n) = 1.at n=33A293284
• a(n) is the smallest positive integer of length (distance from origin) n in the Cayley graph of the integers generated by all powers of 11.at n=25A297181