1398104

Appears in sequences

• a(1) = 4; then alternately add -4 and multiply by -2.at n=40A096406
• a(n) = abs(A154879(n+1)).at n=21A115341
• Third differences of the Jacobsthal sequence A001045.at n=22A154879
• Jacobsthal numbers A001045 alternatingly incremented by 3 and 5.at n=22A154890
• a(n) = (4^n + 8)/3.at n=11A155701
• Number of non-colorable strings of length n considered by the alternating coloring function.at n=23A378105