A187869 a(n) is the concatenation of the numbers appearing in row n of the lexicographically earliest prime pyramid (A051237).

1, 12, 123, 1234, 14325, 143256, 1432567, 12347658, 123476589, 12347658910, 1234710985611, 123471098561112, 12347651211891013, 1234761310981112514, 123476131098111251415, 12347651211815149101316, 1234765121189101316151417, 123476589101316151417121118

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Crossrefs

Cf. A051237.

Sequence in context: A362119 A262575 A187871 * A362117 A262574 A159901

Adjacent sequences: A187866 A187867 A187868 * A187870 A187871 A187872

Keyword

base,nonn

Author

N. J. A. Sloane, Mar 14 2011

Status

approved