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A108604 Squares of the form prime(k)*prime(k+1) + 2*prime(k+1). 4
25, 49, 169, 361, 961, 1849, 3721, 5329, 10609, 11881, 19321, 22801, 32761, 37249, 39601, 52441, 58081, 73441, 80089, 97969, 121801, 177241, 187489, 214369, 273529, 326041, 361201, 383161, 413449, 436921, 657721, 677329, 687241, 737881, 779689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Squares of greater of twin primes.

LINKS

Table of n, a(n) for n=1..35.

MAPLE

ZL:=[]:for p from 1 to 950 do if (isprime(p) and isprime(p+2)) then ZL:=[op(ZL), ((p+2)^2)]; fi; od; print(ZL); # Zerinvary Lajos, Mar 08 2007

CROSSREFS

Cf. A006512, A108570.

Sequence in context: A046949 A137659 A020325 * A046950 A146641 A171590

Adjacent sequences:  A108601 A108602 A108603 * A108605 A108606 A108607

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto, Jul 06 2005

EXTENSIONS

Corrected and extended by Ray Chandler, Jul 10 2005

STATUS

approved

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Last modified May 21 22:24 EDT 2019. Contains 323467 sequences. (Running on oeis4.)