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A082285 a(n) = 16n + 13. 3
13, 29, 45, 61, 77, 93, 109, 125, 141, 157, 173, 189, 205, 221, 237, 253, 269, 285, 301, 317, 333, 349, 365, 381, 397, 413, 429, 445, 461, 477, 493, 509, 525, 541, 557, 573, 589, 605, 621, 637, 653, 669, 685, 701, 717, 733, 749, 765, 781, 797, 813, 829, 845 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Solutions to (7^x + 11^x) mod 17 = 13.

a(n-2), n>=2, gives the second column in triangle A238476 related to the Collatz problem. - Wolfdieter Lang, Mar 12 2014

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (2,-1).

FORMULA

a(n) = 16n + 13. - Max Alekseyev, Mar 03 2007

a(n) = 32*n - a(n-1) + 10; a(0)=13. - Vincenzo Librandi, Oct 10 2011

MATHEMATICA

Range[13, 1000, 16] (* Vladimir Joseph Stephan Orlovsky, May 31 2011 *)

PROG

(PARI) \\ solutions to 7^x+11^x == 13 mod 17

anpbn(n) = { for(x=1, n, if((7^x+11^x-13)%17==0, print1(x" "))) }

(MAGMA) [[ n : n in [1..1000] | n mod 16 eq 13]]; // Vincenzo Librandi, Oct 10 2011

CROSSREFS

Cf. A008598, A119413, A106839, A098502.

Sequence in context: A228069 A044074 A044455 * A243138 A153422 A166034

Adjacent sequences:  A082282 A082283 A082284 * A082286 A082287 A082288

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard, May 10 2003

STATUS

approved

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Last modified June 26 02:24 EDT 2017. Contains 288749 sequences.