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A063210
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Dimension of the space of weight 2n cuspidal newforms for Gamma_0( 42 ).
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2
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1, 2, 6, 6, 10, 10, 14, 14, 18, 18, 22, 22, 26, 26, 30, 30, 34, 34, 38, 38, 42, 42, 46, 46, 50, 50, 54, 54, 58, 58, 62, 62, 66, 66, 70, 70, 74, 74, 78, 78, 82, 82, 86, 86, 90, 90, 94, 94, 98, 98
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| Equals triangle A153860 * [1,2,3,...] [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 03 2009]
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LINKS
| 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) = (n^2 - n)/floor(n/2) for n >=2. (Excludes leading 1.) - William A. Tedeschi (fynmun(AT)hotmail.com), Mar 20 2008
Conjecture: Except for the first term, a(n)=4*(n-1)-a(n-1), (with a(2)=2) [From Vincenzo Librandi, Dec 07 2010]
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CROSSREFS
| A153860 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 03 2009]
Sequence in context: A141377 A006955 A196053 * A114718 A102261 A147298
Adjacent sequences: A063207 A063208 A063209 * A063211 A063212 A063213
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jul 10 2001
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