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A244841 4^p - 3^p - 1, where p is prime. 1
6, 36, 780, 14196, 4017156, 65514540, 17050729020, 273715645476, 70274600998836, 288161745774346860, 4611068345031103956, 18889015647572689857420, 4835666805462139528038300, 77370924198368872644117636, 19807014039751725440882699796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

For p>3, all terms are divisible by 13.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..250

MATHEMATICA

Table[(4^Prime[n] - 3^Prime[n] - 1), {n, 1, 30}

PROG

(MAGMA) [4^p-3^p-1: p in PrimesUpTo(60)]

CROSSREFS

Cf. A242083, A242084.

Sequence in context: A077290 A222780 A206636 * A268161 A082027 A203106

Adjacent sequences:  A244838 A244839 A244840 * A244842 A244843 A244844

KEYWORD

nonn

AUTHOR

Vincenzo Librandi, Jul 07 2014

STATUS

approved

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Last modified April 18 10:35 EDT 2019. Contains 322209 sequences. (Running on oeis4.)