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A135704
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7*n^2 + 4*n + 1.
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1
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4, 1, 12, 37, 76, 129, 196, 277, 372, 481, 604, 741, 892, 1057, 1236, 1429, 1636, 1857, 2092, 2341, 2604, 2881, 3172, 3477, 3796, 4129, 4476, 4837, 5212, 5601, 6004, 6421, 6852, 7297, 7756, 8229, 8716, 9217, 9732, 10261, 10804, 11361, 11932
(list; graph; refs; listen; history; internal format)
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OFFSET
| -1,1
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REFERENCES
| L. Hogben, Choice and Chance by Cardpack and Chessboard. Vol. 1, Chanticleer Press, NY, 1950, p. 36.
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LINKS
| Index entries for sequences related to linear recurrences with constant coefficients, signature (3,-3,1).
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FORMULA
| a(n)=a(n-1)+14*n-3 (with a(-1)=4) [From Vincenzo Librandi, Nov 18 2010]
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MATHEMATICA
| Table[7n^2+4n+1, {n, -1, 50}] (* From Harvey P. Dale, Mar 26 2011 *)
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CROSSREFS
| This is simply A005892 with offset -1.
Sequence in context: A019237 A019238 A157404 * A002564 A019428 A184753
Adjacent sequences: A135701 A135702 A135703 * A135705 A135706 A135707
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 04 2008
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