Riordan Array Approach to the Coefficients of Ramanujan’s Harmonic Number Expansion
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DOI: 10.1007/s00025-016-0597-9
Abstract: In this paper, by the Riordan array method, we show that in Ramanujan’s asymptotic expansion of the harmonic numbers, the coefficients given by Villarino satisfy the recurrence given by Chen and Cheng. This gives an… read more here.
Keywords: array; array approach; expansion; approach coefficients ... See more keywords
Half Riordan array sequences
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DOI: 10.1016/j.laa.2020.06.019
Abstract: Abstract We construct sequences of vertical and horizontal halves of various Riordan arrays by using the vertical and horizontal halve Riordan array transform operators. The sequence characterizations of halves of Riordan arrays are presented and… read more here.
Keywords: halve riordan; array; riordan arrays; riordan array ... See more keywords