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A112414 3n+7. 7
7, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 166, 169, 172, 175, 178, 181, 184 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

At least the first 2 million terms from a(1) on coincide with the corresponding terms of A086822(n+2). - R. J. Mathar, Aug 15 2008

LINKS

Table of n, a(n) for n=0..59.

Tanya Khovanova, Recursive Sequences

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

FORMULA

a(n) = C(1+n,1)+C(2+n,1)+C(4+n,1).

EXAMPLE

If n=0 then C(1+0,1)+C(2+0,1)+C(4+0,1)= C(1,1)+ C( 2,1)+C( 4,1)=1+2+4=7

If n=21 then C(1+21,1)+C(2+21,1)+C(4+21,1)= C(22,1)+C(23,1)+C(25,1)= 22+23+25=70

PROG

(PARI) a(n)=3*n+7 \\ Charles R Greathouse IV, Jul 10 2016

CROSSREFS

Sequence in context: A024888 A226567 A184106 * A034810 A154487 A023390

Adjacent sequences:  A112411 A112412 A112413 * A112415 A112416 A112417

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, Dec 09 2005

EXTENSIONS

Better definition from T. D. Noe, Nov 30 2006

STATUS

approved

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Last modified August 21 09:54 EDT 2017. Contains 290864 sequences.