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 A020525 a(n) = 5th Euler polynomial evaluated at 2^n and multiplied by 2. 4
 1, 3, 847, 45375, 1770751, 61871103, 2063618047, 67377381375, 2177548746751, 70025148104703, 2246302260789247, 71969633128677375, 2304435634414026751, 73764458297036898303, 2360822953465975144447, 75552099118396657893375 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Colin Barker, Table of n, a(n) for n = 0..664 Index entries for linear recurrences with constant coefficients, signature (53,-756,2752,-2048). FORMULA a(n) = 53*a(n-1)-756*a(n-2)+2752*a(n-3)-2048*a(n-4) for n>3. - Colin Barker, May 04 2015 G.f.: (1444*x^2-50*x+1) / ((x-1)*(4*x-1)*(16*x-1)*(32*x-1)). - Colin Barker, May 04 2015 MAPLE seq(euler(5, 2**i), i=0..24); MATHEMATICA Table[EulerE[5, 2^n], {n, 0, 40}]*2 (* Vladimir Joseph Stephan Orlovsky, Nov 03 2009 *) PROG (PARI) Vec((1444*x^2-50*x+1)/((x-1)*(4*x-1)*(16*x-1)*(32*x-1)) + O(x^100)) \\ Colin Barker, May 04 2015 CROSSREFS Cf. A020523 - A020526. Sequence in context: A062658 A266654 A000723 * A252762 A283017 A093189 Adjacent sequences:  A020522 A020523 A020524 * A020526 A020527 A020528 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified October 15 15:13 EDT 2019. Contains 328030 sequences. (Running on oeis4.)