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A214207
Replace the terms of A213975 with their ranks in A007931.
4
1, 2, 3, 4, 5, 8, 9, 11, 12, 17, 19, 20, 24, 25, 35, 36, 40, 41, 49, 51, 72, 73, 81, 83, 99, 100, 104, 145, 147, 163, 164, 168, 200, 201, 209, 292, 296, 328, 329, 337, 401, 403, 419, 420, 585, 593, 657, 659, 675, 676, 804, 808, 840, 841, 1171, 1187, 1188, 1316, 1320, 1352, 1353, 1609, 1617, 1681, 1683, 2344, 2376, 2377, 2633, 2641, 2705, 2707, 3219, 3235
OFFSET
1,2
COMMENTS
Created with the hope of obtaining a better understanding of A213975. It would be interesting if this sequence or A214208 had an alternative definition.
LINKS
EXAMPLE
A213975(10)=1121, which is A007931(17), so a(10)=17.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 09 2012
STATUS
approved