A138900
First gap of length at least n in A136110, lower end.
Original entry on oeis.org
1, 9, 18, 38, 98, 384, 2580, 2580, 2580, 2580, 2580, 367574, 721449, 3879720, 3879720, 53671968, 53671968, 223610114
Offset: 1
First few terms of A136110 are 1,3,4,6,7,9,12,13,15,17,18,22,23,... . The first gap of length 1 is between 1 and 3, hence a(1) = 1; the first gap of length 2 is between 9 and 12, hence a(2) = 9; the first gap of length 3 is between 18 and 22, hence a(3) = 18. The first gap of length at least 7 is between 2580 and 2592; it has length 11,
hence a(7) = a(8) = a(9) = a(10) = a(11) = 2580.
A139386
First gap of length at least n in A007950, lower end.
Original entry on oeis.org
1, 5, 5, 37, 37, 187, 187, 821, 821, 821, 821, 13301, 13301, 109941, 109941, 522717, 522717, 522717, 522717, 1247282901, 1247282901
Offset: 1
First few terms of A007950 are 1,3,5,9,11, ... . The first gap of length 1 is between 1 and 3, so a(1) = 1; the first gap of length 2 is between 5 and 9; it has length 3, so a(2) = a(3) = 5.
A139387
First gap of length at least n in A007951, lower end.
Original entry on oeis.org
2, 11, 133, 497, 4963, 34486, 68978, 14877929, 6186632564, 6186632564
Offset: 1
First few terms of A007951 are 1,2,4,5,7,8,10,11,14,16, ... . The first gap of length 1 is between 2 and 4, so a(1) = 2; the first gap of length 2 is between 11 and 14, so a(2) = 11.
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