A074929 a(n)>0 such that p(n)*p(n+1)-a(n) is a maximal square.

2, 6, 10, 13, 22, 25, 34, 37, 42, 58, 58, 73, 82, 85, 90, 102, 118, 118, 133, 142, 142, 157, 162, 169, 193, 202, 205, 214, 217, 190, 253, 258, 274, 262, 298, 298, 310, 325, 330, 342, 358, 346, 382, 385, 394, 373, 397, 445, 454, 457, 462, 478, 466, 498, 510

Offset

1,1

Links

Table of n, a(n) for n=1..55.

Example

a(1) = 2 because p(1)*p(2) - 2 = 4 -> square, a(2) = 6 because p(2)*p(3) - 6 = 9 -> square.

Crossrefs

Sequence in context: A183990 A049838 A376652 * A095270 A364261 A263827

Adjacent sequences: A074926 A074927 A074928 * A074930 A074931 A074932

Keyword

nonn

Author

Zak Seidov, Oct 02 2002

Status

approved