49811

Properties

Appears in sequences

• The n-th highly composite number equals the a(n)-th composite number, for n >= 3.at n=27A074329
• Primes from merging of 5 successive digits in decimal expansion of Catalan's constant.at n=4A104919
• Primes of the form a^a + b^b + c^c + d^d + e^e + f^f.at n=30A136294
• Primes of the form 41+(n+n^2)/2=41+A000217(n).at n=36A139219
• First differences of A160644.at n=38A160646
• Primes p such that reversal(p) - 13 is a square.at n=39A176371
• Number of n X 3 binary arrays whose sum with another n X 3 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.at n=6A225977
• Number of nX7 binary arrays whose sum with another nX7 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.at n=2A225981
• T(n,k)=Number of nXk binary arrays whose sum with another nXk binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.at n=38A225982
• T(n,k)=Number of nXk binary arrays whose sum with another nXk binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.at n=42A225982
• Primes of the form a^a + a*b + b^b.at n=13A267014
• Primes p such that 2*p+1 and (2*p)^2+(2*p+1)^2 are also prime.at n=45A347110
• Primes that are the concatenation of a square and a prime that is the concatenation of two squares.at n=30A364359
• Prime numbersat n=5116