A256407 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A256407

Numbers n such that for some m, A166133(m)=n, A166133(m+1)=n^2-1, in increasing order.

4

3, 198, 270, 522, 570, 600, 822, 882, 1062, 1950, 2130, 2268, 2310, 2592, 2970, 3168, 5022, 5502, 6702, 7350, 9438, 10038, 10428, 10500, 14010, 14562, 15288, 16650, 17028, 17958, 18060, 18522, 19698, 19890, 20550, 20718, 20772, 22158, 22638, 23058, 23562, 24108, 25170, 25602

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Subtracting 1 seems always to give a prime - see A256410.

LINKS

Ray Chandler, Table of n, a(n) for n = 1..3258

CROSSREFS

Cf. A166133, A256410. This is A256406 sorted into increasing order.

Sequence in context: A209120 A336250 A374514 * A256406 A157565 A157598

Adjacent sequences: A256404 A256405 A256406 * A256408 A256409 A256410

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 01 2015

STATUS

approved