1310719

Properties

Appears in sequences

• Primes of form 5*2^n-1.at n=6A050522
• a(n) = 5*2^(n-1) - 1, n>0, with a(0)=1.at n=19A052549
• a(n) = T(n,1), array T as in A054134.at n=19A054135
• Primes of the form 2^r*5^s - 1.at n=26A077313
• Smallest prime of the form k^n + k^(n-1) - 1.at n=9A126017
• a(n) is the smallest positive integer m with exactly n ones in its binary representation and with n represented in binary as a substring of the binary representation of m.at n=18A147760
• a(n) = 5*2^n - 1.at n=18A153894
• a(n) = 5*4^n - 1.at n=9A156760
• Numbers of the form i*8^j-1 (i=1..7, j >= 0).at n=46A165804
• a(n) = 5*8^n - 1.at n=6A198853
• Primes of the form 5*n^3-1.at n=11A200910
• Primes of the form 4^k + 4^m - 1, where k and m are positive integers.at n=29A234310
• Primes of the form m = 4^i + 4^j - 1, where i > j >= 0.at n=23A239714
• a(n) is the least integer m > 1 such that n is the largest number of identical digits that can end m^k for positive integer k.at n=17A244364
• Record values in A135141.at n=38A246347
• Decimal representation of the n-th iteration of the "Rule 155" elementary cellular automaton starting with a single ON (black) cell.at n=10A263245
• Decimal representation of the n-th iteration of the "Rule 97" elementary cellular automaton starting with a single ON (black) cell.at n=11A267058
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 149", based on the 5-celled von Neumann neighborhood.at n=21A286085
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 809", based on the 5-celled von Neumann neighborhood.at n=21A286858
• a(n) = 5*2^n - (-1)^n.at n=18A321643