1,1

Table of n, a(n) for n=1..37.

168 belongs to this sequence as both 1*6*8 + 1 = 49 and 168 + 1 = 169 are squares.

Cf. A081989.

Sequence in context: A065083 A280190 A037450 * A084920 A323278 A026556

Adjacent sequences: A081987 A081988 A081989 * A081991 A081992 A081993

base,easy,nonn

Amarnath Murthy, Apr 04 2003

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 06 2003

approved