53091

Appears in sequences

• Sequence arising from enumeration of domino tilings of Aztec Pillow-like regions.at n=12A092442
• a(n) = 3*a(n-1) - 2*a(n-2) - a(n-3) + a(n-4) with n>3, a(0)=1, a(1)=2, a(2)=3, a(3)=7.at n=20A131300
• Numbers such that the decimal digits of sigma(n) are a permutation of those of sigma(n)-n.at n=17A277114
• Number of integer compositions of n that are not the run-sums of any other composition.at n=17A354909