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 A001533 (8n+1)(8n+7). 3
 7, 135, 391, 775, 1287, 1927, 2695, 3591, 4615, 5767, 7047, 8455, 9991, 11655, 13447, 15367, 17415, 19591, 21895, 24327, 26887, 29575, 32391, 35335, 38407, 41607, 44935, 48391, 51975, 55687, 59527, 63495, 67591, 71815, 76167, 80647, 85255, 89991, 94855 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS T. D. Noe, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (3,-3,1). FORMULA a(n) = 128*n + a(n-1) with a(0)=7. - Vincenzo Librandi, Nov 12 2010 PROG (PARI) a(n)=(8*n+1)*(8*n+7) \\ Charles R Greathouse IV, Jun 17 2017 CROSSREFS Equals 4 * A001539 - 5. Sequence in context: A317216 A119670 A003374 * A143181 A183478 A292395 Adjacent sequences:  A001530 A001531 A001532 * A001534 A001535 A001536 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified December 4 15:27 EST 2020. Contains 338927 sequences. (Running on oeis4.)