30130

Appears in sequences

• Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 3,0,1.at n=4A037652
• Convolved with its aerated variant of two zeros between terms = A000041.at n=49A174068
• Number of partitions of n having no parts with multiplicity 10.at n=39A184645
• Number of n X 5 binary arrays without the pattern 0 1 diagonally or vertically.at n=13A188839
• a(0)=a(1)=1, a(n) = least k > a(n-1) such that k*a(n-2) is a triangular number.at n=39A214961
• Number of (n+1) X (6+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.at n=7A263797
• Number of multisets summing to n not equal to the first sums of any nonempty multiset.at n=38A390447
• Concatenations x||1||x for numbers x.at n=29A392225