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A341193
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Number of ways to write n as an ordered sum of 4 nonzero decimal palindromes.
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9
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1, 4, 10, 20, 35, 56, 84, 120, 165, 216, 274, 336, 399, 460, 516, 564, 601, 624, 636, 628, 609, 580, 544, 504, 463, 424, 390, 360, 345, 332, 324, 324, 327, 332, 338, 344, 350, 352, 356, 364, 361, 364, 370, 376, 382, 388, 394, 400, 402, 412, 418, 412, 418, 424, 430, 436, 442
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OFFSET
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4,2
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LINKS
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MATHEMATICA
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nmax = 60; CoefficientList[Series[Sum[Boole[PalindromeQ[k]] x^k, {k, 1, nmax}]^4, {x, 0, nmax}], x] // Drop[#, 4] &
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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