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2, 10, 18, 26, 34, 42, 50, 58, 66, 74, 82, 90, 98, 106, 114, 122, 130, 138, 146, 154, 162, 170, 178, 186, 194, 202, 210, 218, 226, 234, 242, 250, 258, 266, 274, 282, 290, 298, 306, 314, 322, 330, 338, 346, 354, 362, 370, 378, 386, 394, 402, 410, 418, 426
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Apart from initial term(s), dimension of the space of weight 2n cusp forms for Gamma_0( 33 ).
Apart from initial term(s), dimension of the space of weight 2n cuspidal newforms for Gamma_0( 81 ).
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..5000
Tanya Khovanova, Recursive Sequences
William A. Stein, Dimensions of the spaces S_k(Gamma_0(N))
William A. Stein, Dimensions of the spaces S_k^{new}(Gamma_0(N))
William A. Stein, The modular forms database
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FORMULA
| a(n) = 8*n+2; a(n) = 2*a(n-1)-a(n-2); [Vincenzo Librandi, May 28 2011]
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MATHEMATICA
| Range[2, 1000, 8] (* From Vladimir Joseph Stephan Orlovsky (4vladimir(AT)gmail.com), May 27 2011 *)
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PROG
| (MAGMA) [8*n+2: n in [0..60]]; // Vincenzo Librandi, May 28 2011
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CROSSREFS
| Cf. A008589, A016993, A017005, A017017, A017077.
Sequence in context: A074069 A069081 A126005 * A097269 A028413 A082969
Adjacent sequences: A017086 A017087 A017088 * A017090 A017091 A017092
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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