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0, 10, 41, 93, 166, 260, 375, 511, 668, 846, 1045, 1265, 1506, 1768, 2051, 2355, 2680, 3026, 3393, 3781, 4190, 4620, 5071, 5543, 6036, 6550, 7085, 7641, 8218, 8816, 9435, 10075, 10736, 11418, 12121
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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FORMULA
| a(n)=21*n+a(n-1)-11 (with a(0)=0) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 04 2010]
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EXAMPLE
| a(1)=21*1+0-11=10; a(2)=21*2+10-11=41; a(3)=21*3+41-11=93 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Aug 04 2010]
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MATHEMATICA
| Table[n(21n-1)/2, {n, 0, 100}] (*From Vladimir Joseph Stephan Orlovsky, Mar 07 2011*)
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CROSSREFS
| Sequence in context: A027274 A016082 A003355 * A006323 A178073 A102784
Adjacent sequences: A022275 A022276 A022277 * A022279 A022280 A022281
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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