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A072710 Last digit of F(n) is 8 where F(n) is the n-th Fibonacci number. 2
6, 24, 27, 33, 66, 84, 87, 93, 126, 144, 147, 153, 186, 204, 207, 213, 246, 264, 267, 273, 306, 324, 327, 333, 366, 384, 387, 393, 426, 444, 447, 453, 486, 504, 507, 513, 546, 564, 567, 573, 606, 624, 627, 633, 666, 684, 687, 693, 726, 744, 747, 753, 786 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sequence contains numbers of form (6+60k), (24+60k), (27+60k), (33+60k), with k>=0.

LINKS

Colin Barker, Table of n, a(n) for n = 1..1000

Index entries for linear recurrences with constant coefficients, signature (1,0,0,1,-1).

FORMULA

G.f.: x*(27*x^4+6*x^3+3*x^2+18*x+6) / (x^5-x^4-x+1). - Colin Barker, Jun 16 2013

a(n) = (-60 - 6*(-1)^n - (21-9*i)*(-i)^n - (21+9*i)*i^n + 60*n) / 4 where i=sqrt(-1). - Colin Barker, Oct 16 2015

PROG

(PARI) a(n) = (-60 - 6*(-1)^n - (21-9*I)*(-I)^n - (21+9*I)*I^n + 60*n) / 4 \\ Colin Barker, Oct 16 2015

(PARI) Vec(x*(27*x^4+6*x^3+3*x^2+18*x+6)/(x^5-x^4-x+1) + O(x^100)) \\ Colin Barker, Oct 16 2015

CROSSREFS

Cf. A000045, A003893.

Sequence in context: A237836 A231324 A274557 * A273124 A069235 A175200

Adjacent sequences:  A072707 A072708 A072709 * A072711 A072712 A072713

KEYWORD

nonn,base,easy

AUTHOR

Benoit Cloitre, Aug 07 2002

STATUS

approved

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Last modified June 28 04:43 EDT 2017. Contains 288813 sequences.