122280

Appears in sequences

• Pentanacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4) + a(n-5) for n>4 and with a(0)=-2, a(1)=-1, a(2)=0, a(3)=1, a(4)=2.at n=22A135055
• The number of skew sum decomposable permutations which avoid the patterns 3124 and 4312.at n=10A228769