A220696 The positions of those permutations in A030298 where the first element is one (fixed).

1, 2, 4, 5, 10, 11, 12, 13, 14, 15, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179

Offset: 1

Author

Antti Karttunen, Dec 17 2012

Keywords

• nonn

Comments

Correspondingly gives the positions of those terms in A030299 whose first digit is 1, as long as the decimal encoding system employed is valid.

Links

• A. Karttunen, Table of n, a(n) for n = 1..5914

Crossrefs

Complement: A220656. Cf. A072795.

Formula

a(1)=1; and for n>1, a(n)=A220695(n-1)+1.