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A110487 Squares of the form p*q - p - q + 2, where p and q are primes. 1
9, 25, 49, 81, 121, 169, 225, 289, 361, 529, 625, 841, 961, 1225, 1369, 1521, 1681, 1849, 2025, 2209, 2401, 2601, 2809, 3025, 3481, 3721, 4225, 4489, 4761, 5041, 5329, 5929, 6241, 6889, 7225, 7921, 8281, 9025, 9409, 10201, 10609, 11449, 11881, 12769 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Includes A108570 squares of lesser twin primes and A110284 squares of form 4p-3 where p is prime (q=5).

LINKS

Table of n, a(n) for n=1..44.

CROSSREFS

Cf. A108570, A110284, A110484.

Sequence in context: A325701 A113745 A016754 * A259417 A030156 A331587

Adjacent sequences:  A110484 A110485 A110486 * A110488 A110489 A110490

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto, Sep 11 2005

EXTENSIONS

Corrected and extended by Ray Chandler, Sep 13 2005

STATUS

approved

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Last modified February 28 14:16 EST 2021. Contains 341707 sequences. (Running on oeis4.)