Counting integers normally (1, 2, 3, 4, 5...), write them as roman numerals (I, II, III, IV, V...), describe them (one 1, two 1s, three 1s, one 1 one 5, one 5...), and write them out as numbers (11, 21, 31, 1115, 15...).

A180105

Counting integers normally (1, 2, 3, 4, 5...), write them as roman numerals (I, II, III, IV, V...), describe them (one 1, two 1s, three 1s, one 1 one 5, one 5...), and write them out as numbers (11, 21, 31, 1115, 15...).

Terms

    a(0) =11a(1) =21a(2) =31a(3) =1115a(4) =15a(5) =1511a(6) =1521a(7) =1531a(8) =11110a(9) =110a(10) =11011a(11) =11021a(12) =11031a(13) =1101115a(14) =11015a(15) =1101511a(16) =1101521a(17) =1101531a(18) =11011110a(19) =210a(20) =21011a(21) =21021a(22) =21031a(23) =2101115a(24) =21015a(25) =2101511a(26) =2101521a(27) =2101531a(28) =21011110a(29) =310

External references