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Search: id:A004768
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| A004768 |
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Binary expansion ends 001. |
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+0
4
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| 9, 17, 25, 33, 41, 49, 57, 65, 73, 81, 89, 97, 105, 113, 121, 129, 137, 145, 153, 161, 169, 177, 185, 193, 201, 209, 217, 225, 233, 241, 249, 257, 265, 273, 281, 289, 297, 305, 313, 321, 329, 337, 345, 353, 361, 369, 377, 385, 393, 401, 409, 417
(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( 28 ).
For n>0: a(n) = A017077(n-1). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2008]
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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) = 8*n + 9. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2008]
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PROGRAM
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(Other) sage: [i+9 for i in range(415) if gcd(i, 8) == 8] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 20 2009]
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CROSSREFS
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A146302. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2008]
Sequence in context: A073160 A143850 A017077 this_sequence A035198 A056233 A126623
Adjacent sequences: A004765 A004766 A004767 this_sequence A004769 A004770 A004771
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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