| 3, 11, 19, 27, 35, 43, 51, 59, 67, 75, 83, 91, 99, 107, 115, 123, 131, 139, 147, 155, 163, 171, 179, 187, 195, 203, 211, 219, 227, 235, 243, 251, 259, 267, 275, 283, 291, 299, 307, 315, 323, 331, 339, 347, 355
(list; graph; listen)
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OFFSET
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0,1
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COMMENT
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Apart from initial term(s), dimension of the space of weight 2n cusp forms for Gamma_0( 47 ).
Also numbers of the form x^2 + y^2 + z^2, where x,y,z are odd integers. - Alexander Adamchuk (alex(AT)kolmogorov.com), Dec 01 2006
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LINKS
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Tanya Khovanova, Recursive Sequences
William A. Stein, Dimensions of the spaces S_k(Gamma_0(N))
William A. Stein, The modular forms database
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FORMULA
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a(n) = A001969(2*n+1) + A001969(2*n) = A000069(2*n+1) + A000069(2*n). - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 04 2004
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CROSSREFS
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Cf. A004769.
Adjacent sequences: A017098 A017099 A017100 this_sequence A017102 A017103 A017104
Sequence in context: A113295 A043433 A078583 this_sequence A112422 A125994 A137295
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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