1,1

Hauke LĂ¶ffler, Table of n, a(n) for n = 1..10000

a(n) = A001223(n)*A001223(n+1) = (prime(n+1)-prime(n))*(prime(n+2)-prime(n+1)).

f[x_] := Prime[x+1]-Prime[x]

Table[f[w+1]*f[w], {w, 1, 128}]

Cf. A001223, A083538-A083555, A057467.

Sequence in context: A141532 A197000 A198428 * A160161 A129279 A008496

Adjacent sequences: A083547 A083548 A083549 * A083551 A083552 A083553

nonn

Labos Elemer, May 22 2003

approved