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 A146981 Numbers k of the form q^2, q = prime, such that k-2 is a prime. 2
 4, 9, 25, 49, 169, 361, 841, 1369, 1849, 2209, 3721, 5041, 7921, 10609, 11449, 16129, 17161, 19321, 29929, 36481, 44521, 49729, 54289, 57121, 66049, 85849, 97969, 113569, 128881, 177241, 196249, 201601, 218089, 241081, 273529, 292681, 323761 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Except for initial term, a(n) - 1 is not a squarefree number. LINKS Amiram Eldar, Table of n, a(n) for n = 1..10000 FORMULA a(n) = A049002(n) + 2. a(n) = A062326(n)^2. - Amiram Eldar, Oct 21 2019 MATHEMATICA Select[Prime[Range[150]]^2, PrimeQ[#-2]&] (* Harvey P. Dale, Jan 15 2020 *) CROSSREFS Cf. A049002, A062326. Sequence in context: A133019 A326708 A028866 * A068373 A068888 A030481 Adjacent sequences: A146978 A146979 A146980 * A146982 A146983 A146984 KEYWORD nonn AUTHOR Giovanni Teofilatto, Nov 04 2008 EXTENSIONS Corrected (3721 inserted, 10321 replaced by 19321, 49729 and 218089 inserted) by R. J. Mathar, Apr 22 2010 STATUS approved

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Last modified January 31 11:12 EST 2023. Contains 359971 sequences. (Running on oeis4.)