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0, 7, 32, 75, 136, 215, 312, 427, 560, 711, 880, 1067, 1272, 1495, 1736, 1995, 2272, 2567, 2880, 3211, 3560, 3927, 4312, 4715, 5136, 5575, 6032, 6507, 7000, 7511, 8040, 8587, 9152, 9735, 10336, 10955, 11592, 12247, 12920, 13611, 14320, 15047, 15792, 16555
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| a(n+1)=A144454(9n+7)=A061039(27n+21),from Paschen spectrum of hydrogen. [From Paul Curtz (bpcrtz(AT)free.fr), Nov 05 2008]
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FORMULA
| a(n) = a(n-1)+18*n-11 (with a(0)=0) [From Vincenzo Librandi, Nov 22 2010]
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MATHEMATICA
| s=0; lst={s}; Do[s+=n++ +7; AppendTo[lst, s], {n, 0, 8!, 18}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Nov 16 2008]
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PROG
| (Other) sage: [lucas_number1(3, 3*n, 2*n) for n in xrange(0, 44)]# [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Nov 20 2009]
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CROSSREFS
| Cf. A010701, A017257 [From Vincenzo Librandi, Mar 11 2009]
Cf. A185019.
Sequence in context: A153715 A060123 A013650 * A067982 A126562 A190096
Adjacent sequences: A013653 A013654 A013655 * A013657 A013658 A013659
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KEYWORD
| nonn,easy
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AUTHOR
| David W. Wilson (davidwwilson(AT)comcast.net)
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