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 A130067 Binomial coefficients binomial(m,2^k) where m>=1 and 1<=2^k<=m. 1
 1, 2, 1, 3, 3, 4, 6, 1, 5, 10, 5, 6, 15, 15, 7, 21, 35, 8, 28, 70, 1, 9, 36, 126, 9, 10, 45, 210, 45, 11, 55, 330, 165, 12, 66, 495, 495, 13, 78, 715, 1287, 14, 91, 1001, 3003, 15, 105, 1365, 6435, 16, 120, 1820, 12870, 1, 17, 136, 2380, 24310, 17, 18, 153, 3060, 43758 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Provided m and k are given, the sequence index n is n=A001855(m)+k+1. Ordered by m as rows and k as columns the sequence forms a sort of a logarithmically distorted triangle. a(n) is odd if and only if A030308(n)=1. LINKS FORMULA a(n)=binomial(m,2^k), where m=max(j|A001855(j)

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Last modified January 21 17:45 EST 2019. Contains 319349 sequences. (Running on oeis4.)