A367747
E.g.f. satisfies A(x) = exp(x * (1 + x) * A(x^2)).
Original entry on oeis.org
1, 1, 3, 13, 73, 561, 4771, 49813, 562353, 7340833, 102829411, 1627648221, 27294311353, 502042022353, 9759264753603, 205434011254501, 4544894700204001, 107346788357502273, 2657668122191037763, 69701762677026498733, 1909106308252976007081
Offset: 0
-
a_vector(n) = my(v=vector(n+1)); v[1]=1; for(i=1, n, v[i+1]=(i-1)!*sum(j=0, i-1, (j+1)*v[j\2+1]*v[i-j]/((j\2)!*(i-1-j)!))); v;
A367748
E.g.f. satisfies A(x) = exp(x * (1 + x + x^2) * A(x^3)).
Original entry on oeis.org
1, 1, 3, 13, 73, 501, 4051, 40153, 434673, 5231593, 71641891, 1051099941, 16673401273, 289579557853, 5336892479283, 104679769486321, 2199654959898721, 48682858073000913, 1135029742772833603, 27968526823231736893, 721419709386600131241
Offset: 0
-
a_vector(n) = my(v=vector(n+1)); v[1]=1; for(i=1, n, v[i+1]=(i-1)!*sum(j=0, i-1, (j+1)*v[j\3+1]*v[i-j]/((j\3)!*(i-1-j)!))); v;
A367751
E.g.f. satisfies A(x) = exp(x * (1 + x + x^2 + x^3 + x^4) * A(x^5)).
Original entry on oeis.org
1, 1, 3, 13, 73, 501, 4051, 37633, 394353, 4596553, 58941091, 844031541, 12949163833, 213873687613, 3782022682803, 71267635330921, 1439160383457121, 30612704101371153, 686728250047551043, 16198763975779425373, 400727742254252310441
Offset: 0
-
a_vector(n) = my(v=vector(n+1)); v[1]=1; for(i=1, n, v[i+1]=(i-1)!*sum(j=0, i-1, (j+1)*v[j\5+1]*v[i-j]/((j\5)!*(i-1-j)!))); v;
Showing 1-3 of 3 results.