2937691

Appears in sequences

• Magic sums of 3 X 3 semimagic squares composed of consecutive primes.at n=30A268912
• Base-2 expansion of a(n) encodes the steps where numbers of the form 4k+3 are encountered when map x -> A252463(x) is iterated down to 1, starting from x=n.at n=82A292383
• Concatenation of ((p mod 4) - 1)/2 for the primes from 3 through prime(n), converted from binary to decimal.at n=21A362583