349528

Appears in sequences

• a(1) = 4; then alternately add -4 and multiply by -2.at n=36A096406
• a(n) = abs(A154879(n+1)).at n=19A115341
• Third differences of the Jacobsthal sequence A001045.at n=20A154879
• Jacobsthal numbers A001045 alternatingly incremented by 3 and 5.at n=20A154890
• a(n) = (4^n + 8)/3.at n=10A155701
• a(n) = 2*(1+(-1)^n)/3 + 2*A010892(n-1).at n=20A191370
• Largest integer with sum of digits n in fractional base 4/3.at n=31A364779
• Number of non-colorable strings of length n considered by the alternating coloring function.at n=21A378105