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A067717
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a(n+1) is the smallest square > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(0)=4.
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0
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4, 49, 1849, 18496, 134689, 1338649, 3319684, 13380964, 30891364, 38390416, 93683041, 103693489, 139098436, 318693904, 433180969, 803949316, 1036389249, 1836293904, 2893041369, 3029841936, 3103269849, 3134096289, 3321908496
(list; graph; refs; listen; history; internal format)
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