A213949 One half of largest prime gap up to 10^n.

1, 4, 10, 18, 36, 57, 77, 110, 141, 177, 232, 270, 337, 402, 453, 566, 610, 721

Offset

1,2

Comments

Row lengths of A213930.

Links

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

Index entries for primes, gaps between

Formula

a(n) = A038460(n)/2.

Crossrefs

Cf. A213930, A038460.

Sequence in context: A062361 A038416 A217745 * A009913 A063591 A009912

Adjacent sequences: A213946 A213947 A213948 * A213950 A213951 A213952

Keyword

nonn,hard,more

Author

Washington Bomfim, Jun 26 2012

Status

approved