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A129645
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a(1) = 1; for n>1, a(n) = a(n-1)*b(n-1) + 1, where {b(k)} is the concatenated list of the positive divisors of the terms of {a(k)}.
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1
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1, 2, 3, 7, 8, 25, 26, 183, 184, 369, 1477, 11817, 11818, 59091, 1477276, 1477277, 38409203, 499319640, 998639281, 998639282, 182750988607, 11147810305028, 33443430915085, 33443430915086, 6153591288375825, 141532599632643976
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