31615

Appears in sequences

• Starting positions of strings of 3 0's in the decimal expansion of Pi.at n=27A050202
• Consider the Diophantine equation x^3 + y^3 = z^3 + 1 (1 < x < y < z) or 'Fermat near misses'. Sequence gives values of z in monotonic increasing order.at n=20A050791
• Triangle T(n,k) of number of unilaterally connected digraphs on n unlabeled nodes with k arcs, k=0..n*(n-1).at n=55A057270
• Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 14 ones in any 5 X 5 X 5 subtriangle.at n=9A154003
• Integer c such that (a^3 + b^3 - c^3)^2 = 1 where a,b,c are integers greater than 2.at n=43A281224
• Triangle T(n,k) read by rows: the number of semigroups of orientation-preserving partial transformations on n element with right waist k.at n=40A289714
• a(n) = (A230624(n)-2)/4.at n=54A350607