133345

Appears in sequences

• RATS: Reverse Add Then Sort the digits applied to previous term, starting with 1.at n=12A004000
• a(1) = 1, then subtract, add, and multiply 2, 3, 4; 5, 6, 7; ... in that order.at n=17A362269
• a(n) = (3*n-2)!!! * Sum_{k=0..n} 1/(3*k-2)!!!.at n=6A368790
• a(n) = a(n-1) + rotate(a(n-1), n-1 digits right) with a(1) = 1.at n=12A374732