a(n) is the n-digit positive number with no trailing zeros and coprime to its digital reversal R(a(n)) at which abs(a(n) over R(a(n))-Pi) is minimized
trizene25af477b0new file: oeis-research/Derek Orr/Least prime p such that p^n and p^n+1 have the same number of prime factors (counted with multiplicity) or 0 if no such number exists/simple_prog.sf
e25af477b0
new file: oeis-research/Derek Orr/Least prime p such that p^n and p^n+1 have the same number of prime factors (counted with multiplicity) or 0 if no such number exists/simple_prog.sf
trizen
e25af477b0
new file: oeis-research/Derek Orr/Least prime p such that p^n and p^n+1 have the same number of prime factors (counted with multiplicity) or 0 if no such number exists/simple_prog.sf