71633

Properties

Appears in sequences

• Least number which is the end of an arithmetic progression of n numbers that are the sums of two nonzero squares.at n=21A093365
• Least prime P1 of 8 different primes: 4 consecutive primes P1 P2 P3 P4 and 4 primes Q1 Q2 Q3 Q4 such that Q1 with same digits than P1 if not 6 or 9, if 6 then replace with 9 and if 9 then replace with 6, same for Q2 from P2 Q3 from P3 and Q4 from P4.at n=8A122713
• Least prime P1 of 10 different primes: 5 consecutive primes P1 P2 P3 P4 P5 and 5 primes Q1 Q2 Q3 Q4 Q5 such that Q1 with same digits than P1 if not 6 or 9, if 6 then replace with 9 and if 9 then replace with 6, same for Q2 from P2 Q3 from P3 Q4 from P4 and Q5 from P5.at n=1A122714
• G.f.: A(x) = exp( Sum_{n>=1} x^n/n * Product_{k>=1} (1 + x^(n*k)) ).at n=26A218153
• Primes of the form 2k^2 + k + 2.at n=27A249606
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 566", based on the 5-celled von Neumann neighborhood.at n=8A272987
• Prime numbersat n=7092