183605

Appears in sequences

• 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=66A292383
• Concatenation of ((p mod 4) - 1)/2 for the primes from 3 through prime(n), converted from binary to decimal.at n=17A362583