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A298912
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Numbers n such that the number of groups of order n equals the number of groups of order n + 1.
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0
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1, 2, 9, 21, 25, 38, 45, 57, 93, 105, 121, 165, 194, 201, 202, 205, 206, 218, 253, 261, 301, 315, 325, 326, 357, 361, 381, 385, 422, 453, 477, 482, 494, 506, 538, 542, 554, 603, 614, 626, 633, 662, 746, 758, 765, 801, 841, 861, 873, 897, 921, 925, 934, 1005, 1017
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listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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FORMULA
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MAPLE
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with(GroupTheory):
for n from 1 to 300 do if NumGroups(n+1) = NumGroups(n) then print(n); fi; od;
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PROG
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(GAP) Filtered([1..500], n -> NumberSmallGroups(n) = NumberSmallGroups(n+1));
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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