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A141844
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a(n) = 4*a(n-1) + A042968(n), a(0) = 1; where A042968 = "not divisible by 4": (1, 2, 3, 5, 6, 7, 9, 10, 11,...).
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0
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1, 6, 27, 113, 458, 1839, 7365, 29470, 117891, 471577, 1886322, 7545303, 30181229, 120724935, 482899761, 1931599066, 7726396287
(list; graph; refs; listen; history; internal format)
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