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 A083433 a(1) = 1; a palindrome is included in the sequence if it has a prime signature that is different from all previous terms. 0
 1, 2, 4, 6, 8, 44, 66, 88, 252, 272, 414, 484, 616, 858, 2112, 2772, 2992, 4004, 4224, 6006, 6336, 6776, 8008, 8448, 14641, 25952, 27872, 27972, 29592, 29792, 36963, 40404, 42224, 42624, 44544, 44944, 48384, 63336, 63536, 63936, 69696, 84448 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 66 = 2*3*11 is the smallest palindrome with prime signature p*q*r; 252 = 2^2*3^2*7 is the smallest palindrome with prime signature p^2*q^2*r; 77 is not a member as 6 which is a member has the same prime signature p*q; where p,q,r are primes. CROSSREFS Cf. A083434, A083435. Sequence in context: A108425 A215216 A059569 * A083435 A163502 A110995 Adjacent sequences:  A083430 A083431 A083432 * A083434 A083435 A083436 KEYWORD base,nonn AUTHOR Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), Apr 29 2003 EXTENSIONS Corrected and extended by David Wasserman, Nov 03 2004 STATUS approved

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Last modified May 28 13:05 EDT 2022. Contains 354115 sequences. (Running on oeis4.)