3145732domain: NAppears in sequencesBode numbers multiplied by 10: 4 + 3*floor(2^(n-1)).at n=21A003461Maximal term in Collatz-iteration started at 2^n+1.at n=20A087970a(n) = 6*2^n + 4 (Bode Number A003461(n+2)) except for a(1)=6.at n=18A091307Number of (n+1) X 4 0..2 matrices with each 2 X 2 subblock idempotent.at n=24A224671