43108

Appears in sequences

• Numerators of continued fraction convergents to sqrt(299).at n=5A041562
• Variation of Boustrophedon transform applied to sequence 1,0,0,0,...: fill an array by diagonals in alternating directions - 'up' and 'down'. The first element of each diagonal after the first is 0. When 'going up', add to the previous element the elements of the row the new element is in. When 'going down', add to the previous element the elements of the column the new element is in. The final element of the n-th diagonal is a(n).at n=9A059219
• The array in A059219 read by antidiagonals in the direction in which it was constructed.at n=54A059235
• Triangle T(n,k), 0<=k<=n, giving coefficients when output sequence O_0, O_1, O_2, ... from transformation described in A059216 is expressed in terms of input sequence I_0, I_1, I_2, ...at n=54A059718
• Triangle T(n,k), 0<=k<=n, formed from coefficients when formula for n-th diagonal of triangle in A059718 is written as a sum of binomial coefficients.at n=46A059720
• Numbers n, not divisible by 3, 5, 7 or 11, such that A000203(n)-n-1 and 2*n+1-A000203(n) are prime numbers.at n=16A180268
• Numbers n whose digits match the almost-natural numbers from A007376(n) onwards.at n=12A258785
• Column 4 of A060244.at n=29A291589